# EDGAR Filing Document

**Accession Number:** 0001713393
**File Stem:** 0001628297-25-000630
**Filing Date:** 2025-8
**Character Count:** 174463
**Document Hash:** 99466fcb2db06253be2878047d16a123
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628297-25-000630.hdr.sgml**: 20250828

**ACCESSION NUMBER**: 0001628297-25-000630

**CONFORMED SUBMISSION TYPE**: 10-D

**PUBLIC DOCUMENT COUNT**: 4

**CONFORMED PERIOD OF REPORT**: 20250815

**FILED AS OF DATE**: 20250828

**DATE AS OF CHANGE**: 20250828

**ABS ASSET CLASS**: Commercial mortgages

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CITIGROUP COMMERCIAL MORTGAGE TRUST 2017-B1
- **CENTRAL INDEX KEY:** 0001713393
- **STANDARD INDUSTRIAL CLASSIFICATION:** ASSET-BACKED SECURITIES [6189]
- **ORGANIZATION NAME:** Office of Structured Finance
- **STATE OF INCORPORATION:** DE

**FILING VALUES:**
- **FORM TYPE:** 10-D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 333-207132-13
- **FILM NUMBER:** 251272080

**BUSINESS ADDRESS:**
- **STREET 1:** 390 GREENWICH STREET
- **STREET 2:** 7TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013
- **BUSINESS PHONE:** 2128165343

**MAIL ADDRESS:**
- **STREET 1:** 390 GREENWICH STREET
- **STREET 2:** 7TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM 10-D** 

**ASSET-BACKED ISSUER** 

**DISTRIBUTION REPORT PURSUANT TO SECTION 13 OR 15(d) OF** 

**THE SECURITIES EXCHANGE ACT OF 1934** 

**For the monthly distribution period from:** 

**July 18, 2025 to August 15, 2025** 

**Commission File Number of issuing entity: 333-207132-13** 

**Central Index Key Number of issuing entity: 0001713393** 

## Citigroup Commercial Mortgage Trust 2017-B1
**(Exact name of issuing entity as specified in its charter)** 

**Commission File Number of depositor: 333-207132** 

**Central Index Key Number of depositor: 0001258361** 

**Citigroup Commercial Mortgage Securities Inc.** 

**(Exact name of depositor as specified in its charter)** 

**Citi Real Estate Funding Inc.** 

**(Central Index Key Number: 0001701238)** 

**Morgan Stanley Mortgage Capital Holdings LLC** 

**(Central Index Key Number: 0001541557)** 

**Bank of America, National Association** 

**(Central Index Key Number: 0001102113)** 

**Citigroup Global Markets Realty Corp.** 

**(Central Index Key Number: 0001541001)** 

**(Exact names of sponsors as specified in their respective charters)** 

**Richard Simpson (212) 816-5343** 

**(Name and telephone number, including area code, of the person to contact in connection with this filing)** 

**New York** 

**(State or other jurisdiction of incorporation or organization of the issuing entity)** 

**82-2624993** 

**82-2680021** 

**82-6550935** 

**(I.R.S. Employer Identification No.)** 

---

| | |
|:---|:---|
| **c/o Citibank, N.A.**<br> **388 Greenwich Street, 14<sup>th</sup> Floor**<br> **New York, New York** | **10013** |
| **(Address of principal executive offices of the issuing entity)** | **(Zip Code)** |

---

**(212) 816-5693** 

**(Telephone number, including area code)** 

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Title of class** | **Registered/reporting pursuant to**<br> **(check one)** | **Registered/reporting pursuant to**<br> **(check one)** | **Registered/reporting pursuant to**<br> **(check one)** | **Name of exchange**<br> **(If Section 12(b))** |
|  | **Section 12(b)** | **Section 12(g)** | **Section 15(d)** | **Name of exchange**<br> **(If Section 12(b))** |
|  A-1 | ☐ | ☐ | ☒ | Not Applicable |
|  A-2 | ☐ | ☐ | ☒ | Not Applicable |
|  A-3 | ☐ | ☐ | ☒ | Not Applicable |
|  A-4 | ☐ | ☐ | ☒ | Not Applicable |
|  A-AB | ☐ | ☐ | ☒ | Not Applicable |
|  X-A | ☐ | ☐ | ☒ | Not Applicable |
|  X-B | ☐ | ☐ | ☒ | Not Applicable |
|  A-S | ☐ | ☐ | ☒ | Not Applicable |
|  B | ☐ | ☐ | ☒ | Not Applicable |
|  C | ☐ | ☐ | ☒ | Not Applicable |

---

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

------

**PART I – DISTRIBUTION INFORMATION** 

**Item 1. Distribution and Pool Performance Information.** 

On August 15, 2025, a distribution was made to holders of the certificates issued by Citigroup Commercial Mortgage Trust 2017-B1.

The distribution report is attached as Exhibit 99.1 to this Form 10-D.

No assets securitized by Citigroup Commercial Mortgage Securities Inc. (the "Depositor") and held by Citigroup Commercial Mortgage Trust 2017-B1 were the subject of a demand to repurchase or replace for breach of the representations and warranties contained in the underlying transaction documents during the monthly distribution period covered by this distribution report on Form 10-D.

The Depositor most recently filed a Form ABS-15G under Rule 15Ga-1 under the Securities Exchange Act of 1934 ("Rule 15Ga-1") on February 13, 2025. The CIK number of the Depositor is 0001258361.

Citi Real Estate Funding Inc. ("CREFI"), one of the sponsors, most recently filed a Form ABS-15G under Rule 15Ga-1 on February 13, 2025. The CIK number of CREFI is 0001701238.

Morgan Stanley Mortgage Capital Holdings LLC ("MSMCH"), one of the sponsors, most recently filed a Form ABS-15G under Rule 15Ga-1 on May 13, 2025. The CIK number of MSMCH is 0001541557.

Bank of America, National Association ("BANA"), one of the sponsors, most recently filed a Form ABS-15G under Rule 15Ga-1 on August 8, 2025. The CIK number of BANA is 0001102113.

Citigroup Global Markets Realty Corp. ("CGMRC"), one of the sponsors, most recently filed a Form ABS-15G under Rule 15Ga-1 on February 13, 2025. The CIK number of CGMRC is 0001541001.

**Item 1A. Asset-Level Information.** 

See the Asset Data File and the asset related document filed as Exhibit 102 and Exhibit 103, respectively, to the registrant's Form ABS-EE filed on August 28, 2025 under Commission File No. 333-207132-13 and incorporated by reference herein.

**Item 1B. Asset Representations Reviewer and Investor Communication.** 

Not applicable

**PART II – OTHER INFORMATION** **Item 2. Legal Proceedings.** 

No information to report for the monthly distribution period covered by this distribution report on Form 10-D.

**Item 3. Sales of Securities and Use of Proceeds.** 

None

**Item 4. Defaults Upon Senior Securities.** 

None

------

**Item 5. Submission of Matters to a Vote of Security Holders.** 

None

**Item 6. Significant Obligors of Pool Assets.**

With respect to the pool assets for Citigroup Commercial Mortgage Trust 2017-B1, there are no significant obligors within the meaning of Item 1101(k) of Regulation AB.

**Item 7. Change in Sponsor Interest in Securities.** 

None

**Item 8. Significant Enhancement Provider Information.** 

None

**Item 9. Other Information.**

Wells Fargo Bank, National Association, in its capacity as Master Servicer for Citigroup Commercial Mortgage Trust 2017-B1, affirms the following amounts in the respective accounts:

---

| | | |
|:---|:---|:---|
|  Collection Account Balance |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Prior Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/17/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/15/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |
|  Loan Combination Custodial Account Balance |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Prior Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/17/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/15/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |
|  \*REO Account Balance |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Prior Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/17/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/15/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |
|  \*As provided by the Special Servicer |  |  |

---

Citibank, N.A., in its capacity as Certificate Administrator for Citigroup Commercial Mortgage Trust 2017-B1, affirms the following amounts in the respective accounts:

---

| | | |
|:---|:---|:---|
|  Distribution Account Balance |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Prior Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/17/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $2.93 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/15/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $2.99 |
|  Interest Reserve Account Balance |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Prior Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/17/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/15/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |
|  Excess Liquidation Proceeds Reserve Account Balance |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Prior Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/17/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current Distribution Date: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/15/2025 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $0.00 |

---

**Item 10. Exhibits.** 

(a) The following is a list of documents filed as part of this Form 10-D:

(99.1): Monthly report distributed to holders of the certificates issued by Citigroup Commercial Mortgage Trust 2017-B1, relating to the August 15, 2025 distribution.

(102): Asset Data File (filed as Exhibit 102 to the registrant's Form ABS-EE filed on August 28, 2025 under Commission File No. 333-207132-13 and incorporated by reference herein).

(103): Asset related document (filed as Exhibit 103 to the registrant's Form ABS-EE filed on August 28, 2025 under Commission File No. 333-207132-13 and incorporated by reference herein).

(b) The exhibits required to be filed by the Registrant pursuant to this Form 10-D are listed above and in the Exhibit Index that immediately precedes the signature page hereof.

------

EXHIBIT INDEX

---

| | |
|:---|:---|
| Exhibit Number | Description |
| Exhibit 99.1 | [Monthly report distributed to holders of the certificates issued by Citigroup Commercial Mortgage Trust 2017-B1, relating to the August 15, 2025 distribution.](ex99_1.htm) |
| Exhibit 102 | [Asset Data File (filed as Exhibit 102 to the registrant's Form ABS-EE filed on August 28, 2025 under Commission File No. 333-207132-13 and incorporated by reference herein).](ex102.xml) |
| Exhibit 103 | [Asset related document (filed as Exhibit 103 to the registrant's Form ABS-EE filed on August 28, 2025 under Commission File No. 333-207132-13 and incorporated by reference herein).](ex103.xml) |

---

------

**SIGNATURES** 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

---

| |
|:---|
| Citigroup Commercial Mortgage Securities Inc. |
| (Depositor) |
| /s/ Richard Simpson |
| Richard Simpson, President |

---

Date: August 28, 2025

## Ex-99

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **STATEMENT TO NOTEHOLDERS** |

---

 **August 15, 2025**

---

| | | |
|:---|:---|:---|
| **TRANSACTION PARTIES** | **TRANSACTION PARTIES** | **TRANSACTION PARTIES** |
| Depositor: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Citigroup Commercial Mortgage Securities Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Citigroup Commercial Mortgage Securities Inc. |
| Master Servicer: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Wells Fargo Bank, National Association | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Wells Fargo Bank, National Association |
| Certificate Administrator: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Citibank, N.A. |  |
| Special Servicer: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LNR Partners, LLC | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LNR Partners, LLC |
| Trustee / Custodian: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deutsche Bank Trust Company Americas | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deutsche Bank Trust Company Americas |
| Asset Representations Reviewer / | Asset Representations Reviewer / |  |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BellOak, LLC |  |
| Operating Advisor: |  |  |
|  | &nbsp;&nbsp;&nbsp;&nbsp; **Danny Lee** | **Citibank, Agency and Trust** |
|  | (212) 816-4936 | 388 Greenwich Street Trading, 4th Floor |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; danny1.lee@citi.com | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; danny1.lee@citi.com | New York, NY 10013 |

---

---

| | | | |
|:---|:---|:---|:---|
| **TABLE OF CONTENTS** | **TABLE OF CONTENTS** | **TABLE OF CONTENTS** | **TABLE OF CONTENTS** |
| 1 | . | Distribution Summary | 2 |
| 1.1 | . | &nbsp;&nbsp;&nbsp; Summary | 2 |
| 1.2 | . | &nbsp;&nbsp;&nbsp; Factors | 3 |
| 2 | . | Distribution Detail | 4 |
| 2.1 | . | &nbsp;&nbsp;&nbsp; Interest Detail | 4 |
| 2.2 | . | &nbsp;&nbsp;&nbsp; Interest Shortfall Detail | 5 |
| 2.3 | . | &nbsp;&nbsp;&nbsp; Principal Detail | 6 |
| 3 | . | Reconciliation Detail | 7 |
| 4 | . | Other Information | 8 |
| 5 | . | Stratification Detail | 9 |
| 6 | . | Mortgage Loan Detail | 14 |
| 7 | . | NOI Detail | 16 |
| 8 | . | Delinquency Loan Detail | 18 |
| 9 | . | Collateral Performance Delinquency and Loan Status Detail | 19 |
| 10 | . | Appraisal Reduction Detail | 20 |
| 11 | . | Historical Appraisal Reduction Detail | 21 |
| 12 | . | Loan Modification Detail | 24 |
| 13 | . | Historical Loan Modification Detail | 25 |
| 14 | . | Specially Serviced Loan Detail | 31 |
| 15 | . | Historical Specially Serviced Loan Detail | 32 |
| 16 | . | Unscheduled Principal Detail | 37 |
| 17 | . | Historical Unscheduled Principal Detail | 38 |
| 18 | . | Liquidated Loan Detail | 39 |
| 19 | . | Historical Liquidated Loan Detail | 40 |
| 20 | . | CREFC Investor Reporting Package Legends | 41 |
| 21 | . | Notes | 42 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 1 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **DISTRIBUTION SUMMARY** |

---

 **August 15, 2025**

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| <br>**Class** | <br>&nbsp;&nbsp;&nbsp;&nbsp; **Original**<br> **Balance** | <br>**Prior**<br> **Balance** | <br>**Pass-Through**<br> **Rate** | <br>**Accrual**<br> **Day**<br> **Count** | <br>&nbsp;&nbsp; **Interest**<br> **Distributed** | <br>**Other**<br> **(As Interest)**<br> **Distributed** | <br>**Principal**<br> **Distributed** | <br>**Total**<br> **Distributed** | <br>**Realized Loss**<br> **/(Recovery)** | **Accretion**<br> **&**<br> **Non-Cash**<br> **Balance**<br> **Increase/**<br> **(Decrease)** | <br>**Current**<br> **Balance** |
| A-1 | 21308000.00 | - | 2.008000% | 30/360 | - | - | - | - | - | - | - |
| A-2 | 52843000.00 | - | 3.053000% | 30/360 | - | - | - | - | - | - | - |
| A-3 | 245000000.00 | 233140098.46 | 3.197000% | 30/360 | 621124.08 | - | - | 621124.08 | - | - | 233140098.46 |
| A-4 | 268110000.00 | 268110000.00 | 3.458000% | 30/360 | 772603.65 | - | - | 772603.65 | - | - | 268110000.00 |
| A-AB | 38890000.00 | 14222484.87 | 3.243000% | 30/360 | 38436.27 | - | 590655.43 | 629091.70 | - | - | 13631829.44 |
| A-S | 89450000.00 | 89450000.00 | 3.711000% | 30/360 | 276624.12 | - | - | 276624.12 | - | - | 89450000.00 |
| B | 38016000.00 | 38016000.00 | 3.963000% | 30/360 | 125547.84 | - | - | 125547.84 | - | - | 38016000.00 |
| C | 36899000.00 | 36899000.00 | 4.239691% | 30/360 | 246114.60 | - | - | 246114.60 | - | - | 36899000.00 |
| D | 41370000.00 | 41370000.00 | 3.000000% | 30/360 | 108032.34 | - | - | 108032.34 | - | - | 41370000.00 |
| E | 21245000.00 | 21245000.00 | 3.300000% | 30/360 | - | - | - | - | - | - | 21245000.00 |
| F | 8945000.00 | 8945000.00 | 3.300000% | 30/360 | - | - | - | - | - | - | 8945000.00 |
| G | 8945000.00 | 8945000.00 | 3.300000% | 30/360 | - | - | - | - | - | - | 8945000.00 |
| H | 23481024.00 | 20987913.95 | 3.300000% | 30/360 | - | - | - | - | - | - | 20987913.95 |
| R | - | - | 0.000000% | 30/360 | - | - | - | - | - | - | - |
| VRR | 47079054.00 | 41122657.82 | 0.000000% | 30/360 | 142921.95 | - | 31087.13 | 174009.08 | - | - | 41091570.69 |
| **Total** | **941581078.00** | **822453155.10** |  |  | **2331404.85** | **-** | **621742.56** | **2953147.41** | **-** | **-** | **821831412.54** |
| **Notional** |  |  |  |  |  |  |  |  |  |  |  |
| X-A | 715601000.00 | 604922583.33 | 0.849926% | 30/360 | 428449.46 | - | - | 428449.46 | - | (590655.43) | 604331927.90 |
| X-B | 38016000.00 | 38016000.00 | 0.276691% | 30/360 | 8765.58 | - | - | 8765.58 | - | - | 38016000.00 |
| X-D | 41370000.00 | 41370000.00 | 1.239691% | 30/360 | 42738.36 | - | - | 42738.36 | - | - | 41370000.00 |
| X-E | 21245000.00 | 21245000.00 | 0.939691% | 30/360 | 16636.45 | - | - | 16636.45 | - | - | 21245000.00 |
| X-F | 17890000.00 | 17890000.00 | 0.939691% | 30/360 | 14009.24 | - | - | 14009.24 | - | - | 17890000.00 |
| X-H | 23481024.00 | 20987913.95 | 0.939691% | 30/360 | 16435.14 | - | - | 16435.14 | - | - | 20987913.95 |
| **Total** | **857603024.00** | **744431497.28** |  |  | **527034.23** | **-** | **-** | **527034.23** | **-** | **(590655.43)** | **743840841.85** |
| **Grand Total** | **1799184102.00** | **1566884652.38** |  |  | **2858439.08** | **-** | **621742.56** | **3480181.64** | **-** | **(590655.43)** | **1565672254.39** |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 2 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **DISTRIBUTION SUMMARY - FACTORS** |

---

 **August 15, 2025**

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| <br>**Class** | <br>**CUSIP** | | <br>**Record**<br> **Date** | <br>&nbsp;&nbsp; **Interest**<br> **Distributed** | <br>**Other**<br> **(As Interest)**<br> **Distributed** | <br>**Principal**<br> **Distributed** | <br>**Total**<br> **Distributed** | <br>**Realized Loss**<br> **/(Recovery)** | **Accretion**<br> **&**<br> **Non-Cash**<br> **Balance**<br> **Increase/**<br> **(Decrease)** | <br>&nbsp;&nbsp; **Current**<br> **Balance** |
| A-1 | 17326 | CAW4 | 07/31/2025 | - | - | - | - | - | - | - |
| A-2 | 17326 | CAX2 | 07/31/2025 | - | - | - | - | - | - | - |
| A-3 | 17326 | CAY0 | 07/31/2025 | 2.53520033 | - | - | 2.53520033 | - | - | 951.59223861 |
| A-4 | 17326 | CAZ7 | 07/31/2025 | 2.88166667 | - | - | 2.88166667 | - | - | 1000.00000000 |
| A-AB | 17326 | CBA1 | 07/31/2025 | 0.98833299 | - | 15.18784855 | 16.17618154 | - | - | 350.52274209 |
| A-S | 17326 | CBB9 | 07/31/2025 | 3.09249994 | - | - | 3.09249994 | - | - | 1000.00000000 |
| X-A | 17326 | CBE3 | 07/31/2025 | 0.59872675 | - | - | 0.59872675 | - | - | 844.50961905 |
| X-B | 17326 | CBF0 | 07/31/2025 | 0.23057607 | - | - | 0.23057607 | - | - | 1000.00000000 |
| X-D | 17326CAJ3 U1740GAE4 17326CAK0 |  | 07/31/2025 | 1.03307614 | - | - | 1.03307614 | - | - | 1000.00000000 |
| X-E | 17326CAL8 U1740GAF1 17326CAM6 |  | 07/31/2025 | 0.78307602 | - | - | 0.78307602 | - | - | 1000.00000000 |
| X-F | 17326CAN4 U1740GAG9 17326CAP9 |  | 07/31/2025 | 0.78307658 | - | - | 0.78307658 | - | - | 1000.00000000 |
| X-H | 17326CBK9 U1740GAM6 17326CBL7 |  | 07/31/2025 | 0.69993285 | - | - | 0.69993285 | - | - | 893.82447503 |
| B | 17326 | CBC7 | 07/31/2025 | 3.30250000 | - | - | 3.30250000 | - | - | 1000.00000000 |
| C | 17326 | CBD5 | 07/31/2025 | 6.66995312 | - | - | 6.66995312 | - | - | 1000.00000000 |
| D | 17326CAA2 U1740GAA2 17326CAB0 |  | 07/31/2025 | 2.61136911 | - | - | 2.61136911 | - | - | 1000.00000000 |
| E | 17326CAC8 U1740GAB0 17326CAD6 |  | 07/31/2025 | - | - | - | - | - | - | 1000.00000000 |
| F | 17326CAE4 U1740GAC8 17326CAF1 |  | 07/31/2025 | - | - | - | - | - | - | 1000.00000000 |
| G | 17326CAG9 U1740GAD6 17326CAH7 |  | 07/31/2025 | - | - | - | - | - | - | 1000.00000000 |
| H | 17326CBG8 U1740GAL8 17326CBH6 |  | 07/31/2025 | - | - | - | - | - | - | 893.82447503 |
| R | 17326 | CAU8 | 07/31/2025 | - | - | - | - | - | - | - |
| VRR | 17326 | CAT1 | 07/31/2025 | 3.03578636 | - | 0.66031764 | 3.69610400 | - | - | 872.82065375 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 3 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **DISTRIBUTION INFORMATION - INTEREST DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| |  | **Rate** | | | **Interest** | **Interest** | | | | | **Paid** |  | |
| |  |  | | |  |  | | | | |  | **Cap** | |
| |  |  | | | **Net** | **Accreted** | | | | |  | **Carryover** | |
| <br>**Class** | **Uncapped Capped** | **Uncapped Capped** | <br>**Next** | <br>**Accrual**<br> **Dates** | **Accrued** | **/Deferred** | <br>**Non**<br> **Recovered** | **Shortfall**<br>&nbsp;&nbsp; **Carry**<br> **Forward** | <br>**Cap Carryover**<br> **/Basis Risk** | <br>**Accrued** | **Carry Forward /Basis Risk** | **Carry Forward /Basis Risk** | <br>**Total** |
| A-1 | 2.00800% | 2.00800% | 2.00800% | 07/01-07/31 | - | - | - | - | - | - | - | - | - |
| A-2 | 3.05300% | 3.05300% | 3.05300% | 07/01-07/31 | - | - | - | - | - | - | - | - | - |
| A-3 | 3.19700% | 3.19700% | 3.19700% | 07/01-07/31 | 621124.08 | - | - | - | - | 621124.08 | - | - | 621124.08 |
| A-4 | 3.45800% | 3.45800% | 3.45800% | 07/01-07/31 | 772603.65 | - | - | - | - | 772603.65 | - | - | 772603.65 |
| A-AB | 3.24300% | 3.24300% | 3.24300% | 07/01-07/31 | 38436.27 | - | - | - | - | 38436.27 | - | - | 38436.27 |
| A-S | 3.71100% | 3.71100% | 3.71100% | 07/01-07/31 | 276624.12 | - | - | - | - | 276624.12 | - | - | 276624.12 |
| B | 3.96300% | 3.96300% | 3.96300% | 07/01-07/31 | 125547.84 | - | - | - | - | 125547.84 | - | - | 125547.84 |
| C | 4.31828% | 4.23969% | 4.23969% | 07/01-07/31 | 130366.98 | - | - | 407.51 | - | 130366.98 | 115747.62 | - | 246114.60 |
| D | 3.00000% | 3.00000% | 3.00000% | 07/01-07/31 | 103425.00 | - | - | 258.56 | - | 103425.00 | 4607.34 | - | 108032.34 |
| E | 3.30000% | 3.30000% | 3.30000% | 07/01-07/31 | 58423.75 | - | - | 58584.42 | - | - | - | - | - |
| F | 3.30000% | 3.30000% | 3.30000% | 07/01-07/31 | 24598.75 | - | - | 24666.40 | - | - | - | - | - |
| G | 3.30000% | 3.30000% | 3.30000% | 07/01-07/31 | 24598.75 | - | - | 24666.40 | - | - | - | - | - |
| H | 3.30000% | 3.30000% | 3.30000% | 07/01-07/31 | 57716.76 | - | - | 63032.20 | - | - | - | - | - |
| R | 0.00000% | 0.00000% | 0.00000% | 07/01-07/31 | - | - | - | - | - | - | - | - | - |
| VRR | 0.00000% | 0.00000% | 0.00000% | 07/01-07/31 | 142921.95 | - | - | - | - | 142921.95 | - | - | 142921.95 |
| **Total** |  |  |  |  | **2376387.90** | **-** | **-** | **171615.49** | **-** | **2211049.89** | **120354.96** | **-** | **2331404.85** |
| **Notional** |  |  |  |  |  |  |  |  |  |  |  |  |  |
| X-A | 1.00278% | 0.84993% | 0.84993% | 07/01-07/31 | 428449.46 | - | - | - | - | 428449.46 | - | - | 428449.46 |
| X-B | 0.35528% | 0.27669% | 0.27669% | 07/01-07/31 | 8765.58 | - | - | - | - | 8765.58 | - | - | 8765.58 |
| X-D | 1.31828% | 1.23969% | 1.23969% | 07/01-07/31 | 42738.36 | - | - | - | - | 42738.36 | - | - | 42738.36 |
| X-E | 1.01828% | 0.93969% | 0.93969% | 07/01-07/31 | 16636.45 | - | - | - | - | 16636.45 | - | - | 16636.45 |
| X-F | 1.01828% | 0.93969% | 0.93969% | 07/01-07/31 | 14009.24 | - | - | - | - | 14009.24 | - | - | 14009.24 |
| X-H | 1.01828% | 0.93969% | 0.93969% | 07/01-07/31 | 16435.14 | - | - | - | - | 16435.14 | - | - | 16435.14 |
| **Total** |  |  |  |  | **527034.23** | **-** | **-** | **-** | **-** | **527034.23** | **-** | **-** | **527034.23** |
| **Grand Total** |  |  |  |  | **2903422.13** | **-** | **-** | **171615.49** | **-** | **2738084.12** | **120354.96** | **-** | **2858439.08** |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 4 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **DISTRIBUTION INFORMATION - INTEREST SHORTFALL DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| |  |  | | |  |  | | | |  | **Cap Carryover /** | | |
| | **Non-Recov Shortfall** | **Non-Recov Shortfall** | | | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Carry Forward Interest** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Carry Forward Interest** | | | | **Basis Risk Shortfall** | **Basis Risk Shortfall** | | |
| <br>**Class** | **PPIS** | **SSRA** | <br>**Other**<br> **Shortfall** | <br>**Prior** | **Int. on Prior** | **New** | <br>**Paid** | <br>**Outstanding** | <br>**Prior** | **Int. on Prior** | **New** | <br>**Paid** | <br>**Outstanding** |
| A-1 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| A-2 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| A-3 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| A-4 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| A-AB | - | - | - | - | - | - | - | - | - | - | - | - | - |
| A-S | - | - | - | - | - | - | - | - | - | - | - | - | - |
| B | - | - | - | - | - | - | - | - | - | - | - | - | - |
| C | - | - | - | 115340.11 | 407.51 | - | 115747.62 | - | - | - | - | - | - |
| D | - | - | - | 103425.00 | 258.56 | - | 4607.34 | 99076.22 | - | - | - | - | - |
| E | - | - | - | 58423.75 | 160.67 | 58423.75 | - | 117008.17 | - | - | - | - | - |
| F | - | - | - | 24598.75 | 67.65 | 24598.75 | - | 49265.15 | - | - | - | - | - |
| G | - | - | - | 24598.75 | 67.65 | 24598.75 | - | 49265.15 | - | - | - | - | - |
| H | - | - | - | 1932888.22 | 5315.44 | 57716.76 | - | 1995920.42 | - | - | - | - | - |
| R | - | - | - | - | - | - | - | - | - | - | - | - | - |
| VRR | - | - | - | - | - | - | - | - | - | - | - | - | - |
| **Total** | **-** | **-** | **-** | **2259274.58** | **6277.48** | **165338.01** | **120354.96** | **2310535.11** | **-** | **-** | **-** | **-** | **-** |
| **Notional** |  |  |  |  |  |  |  |  |  |  |  |  |  |
| X-A | - | - | - | - | - | - | - | - | - | - | - | - | - |
| X-B | - | - | - | - | - | - | - | - | - | - | - | - | - |
| X-D | - | - | - | - | - | - | - | - | - | - | - | - | - |
| X-E | - | - | - | - | - | - | - | - | - | - | - | - | - |
| X-F | - | - | - | - | - | - | - | - | - | - | - | - | - |
| X-H | - | - | - | - | - | - | - | - | - | - | - | - | - |
| **Total** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** |
| **Grand Total** | **-** | **-** | **-** | **2259274.58** | **6277.48** | **165338.01** | **120354.96** | **2310535.11** | **-** | **-** | **-** | **-** | **-** |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 5 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **DISTRIBUTION INFORMATION - PRINCIPAL DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| <br>**Class** | <br>**Prior**<br> **Balance** | <br>**Principal**<br> **Distributed** | <br>**Accreted**<br> **Principal** | <br>**Realized Loss**<br> **/(Recovery)** | **Accretion**<br> **&**<br> **Non-Cash**<br> **Balance**<br> **Increase/**<br> **(Decrease)** | <br>**Current**<br> **Balance** | <br>**Cumulative**<br> **Realized**<br> **Loss** | <br>**Class %**<br> **Original** | <br>**Class %**<br> **Current** | <br>**Sub %**<br> **Original** | <br>**Sub %**<br> **Current** |
| A-1 | - | - | - | - | - | - | - | 2.26% | 0.00% | 30.00% | 34.05% |
| A-2 | - | - | - | - | - | - | - | 5.61% | 0.00% | 30.00% | 34.05% |
| A-3 | 233140098.46 | - | - | - | - | 233140098.46 | - | 26.02% | 28.37% | 30.00% | 34.05% |
| A-4 | 268110000.00 | - | - | - | - | 268110000.00 | - | 28.47% | 32.62% | 30.00% | 34.05% |
| A-AB | 14222484.87 | 590655.43 | - | - | - | 13631829.44 | - | 4.13% | 1.66% | 30.00% | 34.05% |
| A-S | 89450000.00 | - | - | - | - | 89450000.00 | - | 9.50% | 10.88% | 20.00% | 22.59% |
| B | 38016000.00 | - | - | - | - | 38016000.00 | - | 4.04% | 4.63% | 15.75% | 17.73% |
| C | 36899000.00 | - | - | - | - | 36899000.00 | - | 3.92% | 4.49% | 11.63% | 13.00% |
| D | 41370000.00 | - | - | - | - | 41370000.00 | - | 4.39% | 5.03% | 7.00% | 7.70% |
| E | 21245000.00 | - | - | - | - | 21245000.00 | - | 2.26% | 2.59% | 4.63% | 4.98% |
| F | 8945000.00 | - | - | - | - | 8945000.00 | - | 0.95% | 1.09% | 3.63% | 3.83% |
| G | 8945000.00 | - | - | - | - | 8945000.00 | - | 0.95% | 1.09% | 2.62% | 2.69% |
| H | 20987913.95 | - | - | - | - | 20987913.95 | 2493110.05 | 2.49% | 2.55% | 0.00% | 0.00% |
| R | - | - | - | - | - | - | - | 0.00% | 0.00% | 0.00% | 0.00% |
| VRR | 41122657.82 | 31087.13 | - | - | - | 41091570.69 | 131216.31 | 5.00% | 5.00% | 0.00% | 0.00% |
| **Total** | **822453155.10** | **621742.56** | **-** | **-** | **-** | **821831412.54** | **2624326.36** | **99.99%** | **100.00%** |  |  |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 6 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **RECONCILIATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **SOURCE OF FUNDS** | | | **ALLOCATION OF FUNDS** | **ALLOCATION OF FUNDS** | |
| **Interest Funds Available** |  |  | **Scheduled Fees** |  |  |
| &nbsp;&nbsp;&nbsp; Scheduled Interest | 2879071.65 |  | &nbsp;&nbsp;&nbsp; Servicing Fee | &nbsp;&nbsp;&nbsp;&nbsp; 4366.49 |  |
| &nbsp;&nbsp;&nbsp; Prepayment Interest Shortfall |  |  | &nbsp;&nbsp;&nbsp; Trustee/Certificate Administrator Fee | &nbsp;&nbsp;&nbsp;&nbsp; 4674.28 |  |
| &nbsp;&nbsp;&nbsp; Interest Adjustments |  |  | &nbsp;&nbsp;&nbsp; Operating Advisor Fee | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 764.93 |  |
| &nbsp;&nbsp;&nbsp; ASER Amount |  |  | &nbsp;&nbsp;&nbsp; Asset Representations Reviewer Ongoing Fee | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 164.65 |  |
| &nbsp;&nbsp;&nbsp; Realized Loss in Excess of Principal Balance | - |  | &nbsp;&nbsp;&nbsp; CREFC Intellectual Property Royalty License Fee | 354.10 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Interest Funds Available** |  | **2879071.65** | &nbsp;&nbsp;&nbsp;&nbsp; **Total Scheduled Fees** |  | **10324.45** |
| **Principal Funds Available** |  |  | **Additional Fees, Expenses, etc.** |  |  |
| &nbsp;&nbsp;&nbsp; Scheduled Principal | 621742.56 |  | &nbsp;&nbsp;&nbsp; Additional Servicing Fee | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; - |  |
| &nbsp;&nbsp;&nbsp; Curtailments |  |  | &nbsp;&nbsp;&nbsp; Special Servicing Fee | &nbsp;&nbsp;&nbsp;&nbsp; 7000.00 |  |
| &nbsp;&nbsp;&nbsp; Unscheduled Principal Collections |  |  | &nbsp;&nbsp;&nbsp; Work-out Fee | &nbsp;&nbsp;&nbsp;&nbsp; 2976.94 |  |
| &nbsp;&nbsp;&nbsp; Net Liquidation Proceeds |  |  | &nbsp;&nbsp;&nbsp; Liquidation Fee | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; - |  |
| &nbsp;&nbsp;&nbsp; Repurchased Principal |  |  | &nbsp;&nbsp;&nbsp; Trust Fund Expenses | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; - |  |
| &nbsp;&nbsp;&nbsp; Substitution Principal |  |  | &nbsp;&nbsp;&nbsp; Trust Advisor Expenses | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; - |  |
| &nbsp;&nbsp;&nbsp; Other Principal | - |  | &nbsp;&nbsp;&nbsp; Reimbursement of Nonrecoverable Advances To the Servicer | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; - |  |
|  |  |  | &nbsp;&nbsp;&nbsp; Reimbursement of Interest on Advances to the Servicer | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 331.18 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Principal Funds Available** |  | **621742.56** |  |  |  |
|  |  |  | &nbsp;&nbsp;&nbsp; Borrower Reimbursable Trust Fund Expenses | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; - |  |
| **Other Funds Available** |  |  |  |  |  |
|  |  |  | &nbsp;&nbsp;&nbsp; Other Expenses | - |  |
| &nbsp;&nbsp;&nbsp; Yield Maintenance Charges |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp; Withdrawal of Withheld Amounts from the Interest Reserve |  |  | &nbsp;&nbsp;&nbsp;&nbsp; **Total Additional Fees, Expenses, etc.** |  | **10308.12** |
| Account |  |  |  |  |  |
|  |  |  | **Distributions** |  |  |
| &nbsp;&nbsp;&nbsp; Deposit of Withheld Amounts to the Interest Reserve Account | - |  |  |  |  |
|  |  |  | &nbsp;&nbsp;&nbsp; Interest Distribution | 2858439.08 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Other Funds Available** |  | **-** | &nbsp;&nbsp;&nbsp; Principal Distribution | 621742.56 |  |
|  |  |  | &nbsp;&nbsp;&nbsp; Yield Maintenance Charge Distribution | - |  |
|  |  |  | &nbsp;&nbsp;&nbsp;&nbsp; **Total Distributions** |  | **3480181.64** |
| **Total Funds Available** |  | **3500814.21** |  |  |  |
|  |  |  | **Total Funds Allocated** |  | **3500814.21** |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 7 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **OTHER INFORMATION** |
| **Interest Reserve Account Information** |

---

 **August 15, 2025**

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;Beginning Interest Reserve Account Balance | 0.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deposit of Withheld Amounts to the Interest Reserve Account | 0.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;Withdrawal of Withheld Amounts from the Interest Reserve Account | 0.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;Ending Interest Reserve Account Balance | 0.0 |
| **Excess Liquidation Proceeds Reserve Account Information** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Beginning Excess Liquidation Proceeds Reserve Account Balance | 0.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deposit to the Excess Liquidation Proceeds Reserve Account | 0.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;Withdrawal from the Excess Liquidation Proceeds Reserve Account | 0.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;Ending Excess Liquidation Proceeds Reserve Account Balance | 0.0 |
| **ARD Mortgage Loan Information** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Excess Interest | 0.0 |
| **Collateral Information** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;% of Cut-Off Principal Balance Outstanding | 87.282065% |
| **Controlling Class Information** |  |
| **The Controlling Class is Class H.** |  |
| **The Controlling Class Representative is Investin Pro RED Holdings, LLC** |  |
| **There Are No Disclosable Special Servicer Fees.** |  |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 8 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **STRATIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Anticipated Remaining Term** | **Anticipated Remaining Term** | | | | | |
| | | | **% of** |  | | |
| **Anticipated Remaining**<br> **Term Range** | **Asset**<br> **Count** | **Ending Scheduled**<br> **Balance** | **Agg.Bal. WAC** | **Agg.Bal. WAC** | <br> **WAM** | **Wtd Avg**<br> **DSCR** |
| 60 Months or Less | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |
| 61 to 90 Months | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 91 Months or Greater | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Total | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |
| **Debt Service Coverage Ratio** | **Debt Service Coverage Ratio** |  |  |  |  |  |
| &nbsp;&nbsp; **Debt Service Coverage** | **Asset** | **Ending Scheduled** | **% of** |  |  | **Wtd Avg** |
| **Ratio Range** | **Count** | **Balance** | **Agg.Bal. WAC** | **Agg.Bal. WAC** | **WAM** | **DSCR** |
| 1.250 or Less | 8 | 156983471.34 | 19.10 | 3.8227 | 23 | 0.382148 |
| 1.251 to 1.500 | 5 | 64798482.22 | 7.88 | 4.5324 | 19 | 1.324557 |
| 1.501 to 1.750 | 7 | 104179524.94 | 12.68 | 4.4601 | 23 | 1.622737 |
| 1.751 to 2.000 | 4 | 62868124.53 | 7.65 | 4.4141 | 23 | 1.840331 |
| 2.001 to 2.250 | 6 | 121506962.99 | 14.78 | 4.1320 | 23 | 2.077939 |
| 2.251 to 2.500 | 7 | 122640312.97 | 14.92 | 4.1883 | 23 | 2.378283 |
| 2.501 to 2.750 | 2 | 12668334.20 | 1.54 | 4.2888 | 23 | 2.534119 |
| 2.751 to 3.000 | 1 | 21500000.00 | 2.62 | 3.8000 | 23 | 2.937200 |
| 3.001 to 3.250 | 1 | 6525000.00 | 0.79 | 4.4050 | 24 | 3.155000 |
| 3.251 to 3.500 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 3.501 to 3.750 | 3 | 35204199.38 | 4.28 | 4.4138 | 24 | 3.640102 |
| 3.751 to 4.000 | 1 | 40000000.00 | 4.87 | 3.9400 | 23 | 3.776200 |
| 4.001 or Greater | 2 | 72957000.00 | 8.88 | 3.4852 | 23 | 4.212414 |
| Total | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 9 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **STRATIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Ending Schedule Balance** | | | | | | |
| | | | **% of** |  |  | |
| **Ending Schedule Balance**<br> **Range** | **Asset**<br> **Count** | **Ending Scheduled**<br> **Balance** | **Agg.Bal. WAC WAM** | **Agg.Bal. WAC WAM** | **Agg.Bal. WAC WAM** | **Wtd Avg**<br> **DSCR** |
| 1 to 5,000,000 | 6 | 22194409.14 | 2.70 | 4.6740 | 23 | 1.668516 |
| 10,000,001 to 15,000,000 | 4 | 52531357.20 | 6.39 | 4.1686 | 22 | 1.410579 |
| 15,000,001 to 20,000,000 | 2 | 30700000.00 | 3.74 | 3.3795 | 23 | -0.660290 |
| 20,000,001 to 25,000,000 | 9 | 201150064.18 | 24.48 | 4.0654 | 22 | 2.420680 |
| 25,000,001 to 30,000,000 | 2 | 59806067.77 | 7.28 | 4.5444 | 24 | 2.233114 |
| 30,000,001 to 35,000,000 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 35,000,001 to 40,000,000 | 2 | 77500000.00 | 9.43 | 3.6932 | 23 | 1.949006 |
| 40,000,001 to 45,000,000 | 1 | 41700000.00 | 5.07 | 4.3200 | 24 | 1.835300 |
| 45,000,001 to 50,000,000 | 1 | 46876721.93 | 5.70 | 4.6300 | 24 | 1.574800 |
| 5,000,001 to 10,000,000 | 17 | 126792799.69 | 15.43 | 4.5029 | 23 | 2.059431 |
| 50,000,001 to 55,000,000 | 2 | 103579992.66 | 12.60 | 3.7741 | 23 | 2.725963 |
| 55,000,001 to 60,000,000 | 1 | 59000000.00 | 7.18 | 3.7700 | 24 | 2.048800 |
| 60,000,001 to 65,000,000 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 65,000,001 to 70,000,000 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 70,000,001 to 75,000,000 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 75,000,001 to 80,000,000 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 80,000,001 to 85,000,000 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 85,000,000+ | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Total | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 10 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **STRATIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Loan Rate** | | | | | | |
| | | | **% of** |  |  | |
| <br> **Loan Rate Range** | **Asset**<br> **Count** | **Ending Scheduled**<br> **Balance** | **Agg.Bal. WAC WAM** | **Agg.Bal. WAC WAM** | **Agg.Bal. WAC WAM** | **Wtd Avg**<br> **DSCR** |
| 4.00 or Less | 11 | 312157000.00 | 37.98 | 3.6095 | 23 | 2.256294 |
| 4.01 to 4.25 | 7 | 143510659.35 | 17.46 | 4.1444 | 21 | 1.513213 |
| 4.26 to 4.50 | 13 | 175409278.78 | 21.34 | 4.3666 | 23 | 2.442240 |
| 4.51 to 4.75 | 9 | 148969926.54 | 18.13 | 4.6455 | 23 | 1.826427 |
| 4.76 to 5.00 | 6 | 37778823.51 | 4.60 | 4.8641 | 22 | 1.304731 |
| 5.01 to 5.25 | 1 | 4005724.39 | 0.49 | 5.1100 | 23 | 1.459300 |
| 5.26 to 5.50 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 5.51 to 5.75 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 5.76 to 6.00 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 6.01 to 6.25 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 6.26 to 6.50 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 6.51 to 6.75 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 6.76 to 7.00 | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 7.01 or Greater | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Total | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |
| **Property Type** |  |  |  |  |  |  |
|  | **Asset** | **Ending Scheduled** | **% of** |  |  | **Wtd Avg** |
| **Property Type Range** | **Count** | **Balance** | **Agg.Bal. WAC WAM** | **Agg.Bal. WAC WAM** | **Agg.Bal. WAC WAM** | **DSCR** |
| Industrial | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Lodging | 4 | 106755389.03 | 12.99 | 4.6232 | 24 | 2.229616 |
| Mixed Use | 7 | 161778186.50 | 19.69 | 3.7884 | 23 | 2.918670 |
| Multifamily | 3 | 71347102.99 | 8.68 | 4.2864 | 23 | 2.064797 |
| Office | 8 | 123349885.37 | 15.01 | 4.2445 | 23 | 1.013751 |
| Other | 4 | 78200000.00 | 9.52 | 3.4958 | 23 | 0.314758 |
| Retail | 11 | 183716416.60 | 22.35 | 4.1391 | 22 | 2.029548 |
| Self Storage | 9 | 90858294.21 | 11.06 | 4.2422 | 23 | 3.127292 |
| Total | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 11 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **STRATIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Remaining Amortization Term** | **Remaining Amortization Term** | | | | | |
| **Remaining Amortization**<br> **Term Range** | **Asset**<br> **Count** | **Ending Scheduled**<br> **Balance** | **% of**<br> **Agg.Bal.** | <br> **WAC** | <br> **WAM** | **Wtd Avg**<br> **DSCR** |
| 240 Months or Less | 24 | 564084614.14 | 68.64 | 3.9390 | 23 | 2.135150 |
| 241 to 270 Months | 23 | 257746798.43 | 31.36 | 4.5075 | 23 | 1.833915 |
| 271 to 300 Months | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 301 Months or Greater | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Total | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |
| **Seasoning** |  |  |  |  |  |  |
|  | **Asset** | **Ending Scheduled** | **% of** |  |  | **Wtd Avg** |
| **Seasoning Range** | **Count** | **Balance** | **Agg.Bal.** | **WAC** | **WAM** | **DSCR** |
| 12 Months or Less | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 13 to 24 Months | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 25 to 36 Months | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 37 to 48 Months | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| 49 Months or Greater | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |
| Total | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 12 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **STRATIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **State** | | | | | | |
| | | | **% of** |  |  | |
| <br> **State Range** | **Asset**<br> **Count** | **Ending Scheduled**<br> **Balance** | **Agg.Bal. WAC WAM** | **Agg.Bal. WAC WAM** | **Agg.Bal. WAC WAM** | **Wtd Avg**<br> **DSCR** |
| Alabama | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Arizona | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| California | 3 | 75438942.76 | 9.18 | 4.3781 | 23 | 2.286316 |
| Florida | 4 | 31605000.00 | 3.85 | 4.2439 | 23 | 3.090561 |
| Georgia | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Illinois | 3 | 15966318.20 | 1.94 | 4.8537 | 23 | 1.177087 |
| Indiana | 1 | 4676296.79 | 0.57 | 4.7900 | 23 | 1.000900 |
| Kansas | 1 | 13120027.83 | 1.60 | 4.8500 | 20 | 1.408000 |
| Kentucky | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Maryland | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Michigan | 1 | 21510114.80 | 2.62 | 4.5900 | 24 | 1.335100 |
| N/A | 3 | 67700000.00 | 8.24 | 3.4300 | 23 | 0.000000 |
| Nevada | 1 | 9478186.50 | 1.15 | 4.2591 | 23 | 2.524600 |
| New Jersey | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| New York | 11 | 234346319.12 | 28.52 | 3.9352 | 23 | 2.403240 |
| North Carolina | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Ohio | 1 | 7124602.99 | 0.87 | 4.4890 | 23 | 2.392000 |
| Pennsylvania | 1 | 23000000.00 | 2.80 | 4.0510 | 23 | 1.662800 |
| Texas | 5 | 54580530.71 | 6.64 | 4.3817 | 23 | 1.974385 |
| Various | 0 | 0.00 | 0.00 | 0.0000 | 0 | 0.000000 |
| Total | 47 | 821831412.57 | 100.00 | 4.1173 | 23 | 2.040675 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 13 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **MORTGAGE LOAN DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | | | | | | | | | | | **Payment Workout Mod** | **Payment Workout Mod** | **Payment Workout Mod** |
| | | | | | | | | | | | | **Status** | **Strategy Code** | **Strategy Code** |
| <br>**Loan ID** | <br>**OMCR** | **Prop**<br> **Type**<br> **(1)** | <br>**City** | <br>**State** | **Paid**<br> **Through**<br> **Date** | <br> **Gross**<br> **Coupon** | <br> **Interest**<br> **Payment** | <br> **Principal**<br> **Payment** | **Beginning**<br> **Scheduled**<br> **Balance** | **Ending**<br> **Scheduled**<br> **Balance** | <br> **Maturity**<br> **Date** | **(2)** | **(3)** | **(4)** |
| 304101882 | 1 | MU | New York | NY | 08/09/2025 | 3.43000% | 73840.28 | - | 25000000.00 | 25000000.00 | 06/09/2027 | 0 | 0 | 0 |
| 304101843 | 10 | RT | New York | NY | 08/06/2025 | 4.36600% | 112788.33 | - | 30000000.00 | 30000000.00 | 08/06/2027 | 0 | 0 | 0 |
| 1749262 | 11 | OF | Troy | MI | 08/01/2025 | 4.59000% | 85190.51 | 43461.28 | 21553576.08 | 21510114.80 | 08/01/2027 | 0 | 0 | 0 |
| 1647690 | 12 | RT | Various | XX | 08/01/2025 | 4.19000% | 88528.15 | - | 24536250.00 | 24536250.00 | 11/01/2026 | 0 | 0 | 0 |
| 1749833 | 13 | LO | Lafayette | LA | 08/01/2025 | 4.42000% | 78660.93 | 42809.28 | 20667008.66 | 20624199.38 | 08/01/2027 | 0 | 0 | 8 |
| 300801642 | 14 | MU | Lahaska | PA | 08/01/2025 | 4.05100% | 80232.31 | - | 23000000.00 | 23000000.00 | 07/01/2027 | 0 | 0 | 0 |
| 1749778 | 15 | MF | Dallas | TX | 08/01/2025 | 4.16000% | 80680.60 | - | 22522500.00 | 22522500.00 | 07/01/2027 | 0 | 0 | 0 |
| 304101831 | 16 | MU | Corona | NY | 08/06/2025 | 4.36000% | 82597.78 | - | 22000000.00 | 22000000.00 | 07/06/2027 | 0 | 0 | 0 |
| 300801633 | 17 | MU | New Rochelle | NY | 08/01/2025 | 3.80000% | 70352.78 | - | 21500000.00 | 21500000.00 | 07/01/2027 | 0 | 0 | 0 |
| 308511018 | 18 | RT | Torrance | CA | 08/01/2025 | 3.65750% | 64429.61 | - | 20457000.00 | 20457000.00 | 06/01/2027 | 0 | 0 | 0 |
| 304101851 | 19 | OF | New York | NY | 08/06/2025 | 3.33000% | 44446.25 | - | 15500000.00 | 15500000.00 | 08/06/2027 | 0 | 0 | 0 |
| 304101891 | 1 A | N/A |  |  | 08/09/2025 | 3.43000% | 44304.17 | - | 15000000.00 | 15000000.00 | 06/09/2027 | 0 | 0 | 0 |
| 453011619 | 1 B | N/A |  |  | 08/09/2025 | 3.43000% | 44894.89 | - | 15200000.00 | 15200000.00 | 06/09/2027 | 0 | 0 | 0 |
| 453011576 | 1 C | N/A |  |  | 08/09/2025 | 3.43000% | 110760.42 | - | 37500000.00 | 37500000.00 | 06/09/2027 | 0 | 0 | 0 |
| 1749343 | 2 | RT | Metairie | LA | 08/01/2025 | 3.77000% | 191536.94 | - | 59000000.00 | 59000000.00 | 08/01/2027 | 0 | 0 | 0 |
| 300801632 | 20 | OF | Wichita | KS | 08/01/2025 | 4.85000% | 54901.14 | 25571.86 | 13145599.69 | 13120027.83 | 04/01/2027 | 0 | 0 | 0 |
| 304101858 | 21 | SS | Various | XX | 08/06/2025 | 4.51000% | 54115.48 | 22991.03 | 13934320.40 | 13911329.37 | 08/06/2027 | 0 | 0 | 0 |
| 1749084 | 22 | RT | Plano | TX | 08/01/2025 | 4.64000% | 31460.27 | 40645.00 | 7873815.40 | 7833170.40 | 08/01/2027 | 0 | 0 | 0 |
| 1648607 | 24 | LO | El Paso | TX | 08/01/2025 | 4.71500% | 38437.79 | 18711.59 | 9467111.54 | 9448399.95 | 08/01/2027 | 0 | 8 | 8 |
| 1749362 | 25 | OF | Houston | TX | 08/01/2025 | 4.25000% | 33949.70 | 19843.93 | 9276579.71 | 9256735.78 | 07/01/2027 | 0 | 0 | 0 |
| 304101839 | 26 | N/A | Maitland | FL | 08/06/2025 | 3.92000% | 35443.33 | - | 10500000.00 | 10500000.00 | 07/06/2027 | 0 | 0 | 0 |
| 1647637 | 27 | OF | Rochester | NY | 08/01/2025 | 4.28000% | 21090.84 | 35424.77 | 5722566.98 | 5687142.21 | 08/01/2027 | 0 | 11 | 0 |
| 203041833 | 29 | MU | Reno | NV | 08/06/2025 | 4.25906% | 34814.41 | 14432.63 | 9492619.13 | 9478186.50 | 07/06/2027 | 0 | 0 | 0 |
| 1749761 | 3 | OF | Milwaukee | WI | 08/01/2025 | 4.14000% | 182423.46 | 90682.45 | 51170675.11 | 51079992.66 | 07/01/2027 | 0 | 0 | 0 |
| 304101859 | 30 | RT | Chicago | IL | 01/06/2020 | 4.91000% | - | - | 8770446.11 | 8770446.11 | 08/06/2027 | 3 | 2 | 0 |
| 304101862 | 31 | RT | Ka'anapali | HI | 08/06/2025 | 4.08000% | 28786.33 | 14597.17 | 8193452.73 | 8178855.56 | 08/06/2027 | 0 | 0 | 0 |
| 308511032 | 32 | RT | Hercules | CA | 08/06/2025 | 4.74000% | 33128.36 | 11160.44 | 8116381.27 | 8105220.83 | 08/06/2027 | 0 | 0 | 0 |
| 1749956 | 33 | MU | Brooklyn | NY | 08/01/2025 | 4.40000% | 31447.78 | - | 8300000.00 | 8300000.00 | 08/01/2027 | 0 | 0 | 0 |
| 300801641 | 34 | MF | Marysville | OH | 08/01/2025 | 4.48900% | 27586.29 | 11884.20 | 7136487.19 | 7124602.99 | 07/01/2027 | 0 | 0 | 0 |
| 300801651 | 35 | SS | Miami Gardens | FL | 08/01/2025 | 4.40500% | 29321.39 | - | 7730000.00 | 7730000.00 | 08/01/2027 | 0 | 0 | 0 |
| 300801648 | 36 | SS | Hialeah | FL | 08/01/2025 | 4.40500% | 25983.38 | - | 6850000.00 | 6850000.00 | 08/01/2027 | 0 | 0 | 0 |
| 300801649 | 37 | SS | Hialeah | FL | 08/01/2025 | 4.40500% | 24750.59 | - | 6525000.00 | 6525000.00 | 08/01/2027 | 0 | 0 | 0 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 14 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **MORTGAGE LOAN DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | | | | | | | | | | | **Payment Workout Mod** | **Payment Workout Mod** | **Payment Workout Mod** |
| | | | | | | | | | | | | **Status Strategy Code** | **Status Strategy Code** | **Status Strategy Code** |
| <br>**Loan ID** | <br>**OMCR** | **Prop**<br> **Type**<br> **(1)** | <br>**City** | <br>**State** | **Paid**<br> **Through**<br> **Date** | <br> **Gross**<br> **Coupon** | <br>&nbsp;&nbsp; **Interest**<br> **Payment** | <br> **Principal**<br> **Payment** | **Beginning**<br> **Scheduled**<br> **Balance** | &nbsp;&nbsp;&nbsp;&nbsp; **Ending**<br>&nbsp;&nbsp; **Scheduled**<br> **Balance** | <br> **Maturity**<br> **Date** | **(2)** | **(3)** | **(4)** |
| 1749521 | 38 | RT | Saugerties | NY | 08/01/2025 | 4.73000% | 24305.55 | 8222.11 | 5967399.02 | 5959176.91 | 08/01/2027 | 0 | 0 | 0 |
| 304101856 | 39 | RT | Brooklyn | NY | 08/06/2025 | 4.45000% | 23758.06 | - | 6200000.00 | 6200000.00 | 08/06/2027 | 0 | 0 | 0 |
| 304101861 | 4 | LO | San Diego | CA | 08/06/2025 | 4.63000% | 187334.88 | 110358.73 | 46987080.66 | 46876721.93 | 08/06/2027 | 0 | 8 | 8 |
| 300801659 | 40 | MH | Brookings | OR | 08/01/2025 | 4.92000% | 24716.16 | 7732.36 | 5833870.23 | 5826137.87 | 08/01/2027 | 0 | 0 | 0 |
| 304101838 | 41 | SS | Balch Springs | TX | 08/06/2025 | 4.57000% | 21757.35 | 9072.63 | 5528797.21 | 5519724.58 | 07/06/2027 | 0 | 0 | 0 |
| 300801640 | 42 | SS | Castle Rock | CO | 08/01/2025 | 4.23500% | 18035.44 | 9218.51 | 4945543.86 | 4936325.35 | 07/01/2027 | 0 | 0 | 0 |
| 1749567 | 43 | RT | Goshen | IN | 08/01/2025 | 4.79000% | 19321.13 | 7930.05 | 4684226.84 | 4676296.79 | 07/01/2027 | 0 | 0 | 0 |
| 1749823 | 45 | OF | Barrington | IL | 08/01/2025 | 5.11000% | 17659.22 | 7480.63 | 4013205.02 | 4005724.39 | 07/01/2027 | 0 | 0 | 0 |
| 300801653 | 46 | SS | Shreveport | LA | 08/01/2025 | 4.77300% | 15478.20 | 6358.49 | 3765908.20 | 3759549.71 | 08/01/2027 | 0 | 0 | 0 |
| 300801652 | 47 | OF | Skokie | IL | 08/01/2025 | 4.37700% | 12045.73 | 5782.97 | 3195930.67 | 3190147.70 | 08/01/2027 | 0 | 0 | 0 |
| 300801650 | 48 | SS | Baton Rouge | LA | 08/01/2025 | 4.95300% | 6947.94 | 2663.21 | 1629028.41 | 1626365.20 | 08/01/2027 | 0 | 0 | 0 |
| 300801657 | 5 | MU | Bronx | NY | 08/01/2025 | 3.41800% | 154522.08 | - | 52500000.00 | 52500000.00 | 08/01/2027 | 0 | 0 | 0 |
| 304101849 | 7 | MF | New York | NY | 08/06/2025 | 4.32000% | 155124.00 | - | 41700000.00 | 41700000.00 | 08/06/2027 | 0 | 0 | 0 |
| 308511008 | 8 | SS | Various | XX | 08/06/2025 | 3.94000% | 135711.11 | - | 40000000.00 | 40000000.00 | 07/06/2027 | 0 | 0 | 0 |
| 300801656 | 9 | LO | Various | XX | 08/01/2025 | 4.72400% | 121470.31 | 54707.24 | 29860775.01 | 29806067.77 | 08/01/2027 | 0 | 0 | 0 |
| **Total** | **Count = 47** |  |  |  |  |  | **2879071.65** | **621742.56** | **822453155.13** | **821831412.57** |  |  |  |  |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 15 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **NOI DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| <br>**Loan ID** | <br>**OMCR** | **Property**<br> **Type**<br> **(1)** | <br>**City** | <br>**State** | &nbsp;&nbsp; **Ending**<br> **Scheduled**<br> **Balance** | **Preceding**<br> **Fiscal**<br> **Year NOI** | **Most**<br> **Recent**<br> **NOI** | **Most Recent**<br> **Financial As of**<br> **Start Date** | **Most Recent**<br> **Financial Asof**<br> **End Date** |
| 304101882 | 1 | MU | New York | NY | 25000000.00 | 191484942.44 | 94476466.36 | 01/01/2025 | 06/30/2025 |
| 304101843 | 10 | RT | New York | NY | 30000000.00 | 2630482.76 | 689184.09 | 01/01/2025 | 03/31/2025 |
| 1749262 | 11 | OF | Troy | MI | 21510114.80 | 2567090.69 | 1304586.00 | 01/01/2025 | 06/30/2025 |
| 1647690 | 12 | RT | Various | XX | 24536250.00 | 1850786.91 | 1253813.91 | Not Available | Not Available |
| 1749833 | 13 | LO | Lafayette | LA | 20624199.38 | 5070580.52 | 5955013.26 | 04/01/2024 | 03/31/2025 |
| 300801642 | 14 | MU | Lahaska | PA | 23000000.00 | 2737569.02 | 431260.35 | 01/01/2025 | 03/31/2025 |
| 1749778 | 15 | MF | Dallas | TX | 22522500.00 | 2288834.10 | 1174292.36 | 01/01/2025 | 06/30/2025 |
| 304101831 | 16 | MU | Corona | NY | 22000000.00 | 2194721.64 | 1225476.37 | 01/01/2025 | 06/30/2025 |
| 300801633 | 17 | MU | New Rochelle | NY | 21500000.00 | 4278138.28 | 684012.00 | 01/01/2025 | 03/31/2025 |
| 308511018 | 18 | RT | Torrance | CA | 20457000.00 | 59746222.00 | 44097365.00 | Not Available | Not Available |
| 304101851 | 19 | OF | New York | NY | 15500000.00 | 646698.51 | (119489.48) | Not Available | Not Available |
| 304101891 | 1 A | N/A |  |  | 15000000.00 | - | - | Not Available | Not Available |
| 453011619 | 1 B | N/A |  |  | 15200000.00 | - | - | Not Available | Not Available |
| 453011576 | 1 C | N/A |  |  | 37500000.00 | - | - | Not Available | Not Available |
| 1749343 | 2 | RT | Metairie | LA | 59000000.00 | 17197853.81 | 11430273.74 | Not Available | Not Available |
| 300801632 | 20 | OF | Wichita | KS | 13120027.83 | 1230397.39 | 1088531.98 | Not Available | Not Available |
| 304101858 | 21 | SS | Various | XX | 13911329.37 | 2060726.75 | 520724.32 | 01/01/2025 | 03/31/2025 |
| 1749084 | 22 | RT | Plano | TX | 7833170.40 | 1272584.00 | 966211.00 | Not Available | Not Available |
| 1648607 | 24 | LO | El Paso | TX | 9448399.95 | 1542528.17 | 1551569.12 | 07/01/2024 | 06/30/2025 |
| 1749362 | 25 | OF | Houston | TX | 9256735.78 | 1119548.00 | 511040.46 | 01/01/2025 | 06/30/2025 |
| 304101839 | 26 | N/A | Maitland | FL | 10500000.00 | 955436.00 | 241224.00 | 01/01/2025 | 03/31/2025 |
| 1647637 | 27 | OF | Rochester | NY | 5687142.21 | 1635663.00 | 1585836.00 | 01/01/2025 | 03/31/2025 |
| 203041833 | 29 | MU | Reno | NV | 9478186.50 | 12679152.27 | 3217102.97 | 01/01/2025 | 03/31/2025 |
| 1749761 | 3 | OF | Milwaukee | WI | 51079992.66 | 8154416.17 | 6381643.54 | Not Available | Not Available |
| 304101859 | 30 | RT | Chicago | IL | 8770446.11 | 384123.00 | 84600.00 | Not Available | Not Available |
| 304101862 | 31 | RT | Ka'anapali | HI | 8178855.56 | 1079315.57 | 245595.99 | 01/01/2025 | 03/31/2025 |
| 308511032 | 32 | RT | Hercules | CA | 8105220.83 | 904708.00 | 688321.70 | Not Available | Not Available |
| 1749956 | 33 | MU | Brooklyn | NY | 8300000.00 | 571362.05 | 150171.77 | 01/01/2025 | 03/31/2025 |
| 300801641 | 34 | MF | Marysville | OH | 7124602.99 | 1150008.63 | 291532.89 | 01/01/2025 | 03/31/2025 |
| 300801651 | 35 | SS | Miami Gardens | FL | 7730000.00 | 1260155.50 | 637344.70 | 01/01/2025 | 06/30/2025 |
| 300801648 | 36 | SS | Hialeah | FL | 6850000.00 | 1036491.34 | 543535.51 | 01/01/2025 | 06/30/2025 |
| 300801649 | 37 | SS | Hialeah | FL | 6525000.00 | 933953.42 | 462444.86 | 01/01/2025 | 06/30/2025 |
| Reports Available at sf.citidirect.com | Reports Available at sf.citidirect.com | v. 21.09.28 | v. 21.09.28 |  | Page 16 of 42 |  |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;© Copyright 2025 Citigroup | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;© Copyright 2025 Citigroup |

---

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **NOI DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| <br>**Loan ID** | <br>**OMCR** | **Property**<br> **Type**<br> **(1)** | <br>**City** | <br>**State** | &nbsp;&nbsp;&nbsp;&nbsp; **Ending**<br>&nbsp;&nbsp; **Scheduled**<br> **Balance** | **Preceding**<br>&nbsp;&nbsp;&nbsp;&nbsp; **Fiscal**<br> **Year NOI** | &nbsp;&nbsp;&nbsp;&nbsp; **Most**<br>&nbsp;&nbsp;&nbsp;&nbsp; **Recent**<br> **NOI** | **Most Recent**<br> **Financial As of**<br> **Start Date** | **Most Recent**<br> **Financial Asof**<br> **End Date** |
| 1749521 | 38 | RT | Saugerties | NY | 5959176.91 | 712467.00 | 531853.00 | Not Available | Not Available |
| 304101856 | 39 | RT | Brooklyn | NY | 6200000.00 | 513664.01 | 258119.49 | 01/01/2025 | 06/30/2025 |
| 304101861 | 4 | LO | San Diego | CA | 46876721.93 | 6907263.48 | 6388654.33 | 04/01/2024 | 03/31/2025 |
| 300801659 | 40 | MH | Brookings | OR | 5826137.87 | 792245.45 | 654255.59 | Not Available | Not Available |
| 304101838 | 41 | SS | Balch Springs | TX | 5519724.58 | 688898.78 | 542533.41 | Not Available | Not Available |
| 300801640 | 42 | SS | Castle Rock | CO | 4936325.35 | 697896.91 | 332335.03 | 01/01/2024 | 06/30/2024 |
| 1749567 | 43 | RT | Goshen | IN | 4676296.79 | 510271.03 | 90218.26 | 01/01/2025 | 03/31/2025 |
| 1749823 | 45 | OF | Barrington | IL | 4005724.39 | 447957.17 | 245499.59 | 01/01/2025 | 06/30/2025 |
| 300801653 | 46 | SS | Shreveport | LA | 3759549.71 | 466900.54 | 226954.97 | Not Available | Not Available |
| 300801652 | 47 | OF | Skokie | IL | 3190147.70 | 637004.41 | 305385.50 | 01/01/2025 | 06/30/2025 |
| 300801650 | 48 | SS | Baton Rouge | LA | 1626365.20 | 151113.47 | 78499.57 | Not Available | Not Available |
| 300801657 | 5 | MU | Bronx | NY | 52500000.00 | 7293705.89 | 2005124.79 | 01/01/2025 | 03/31/2025 |
| 304101849 | 7 | MF | New York | NY | 41700000.00 | 3266504.36 | 831461.09 | 01/01/2025 | 03/31/2025 |
| 308511008 | 8 | SS | Various | XX | 40000000.00 | 12038684.58 | 3009138.91 | 01/01/2025 | 03/31/2025 |
| 300801656 | 9 | LO | Various | XX | 29806067.77 | 5670092.00 | 5696416.08 | 07/01/2024 | 06/30/2025 |
| **Total** | **Count = 47** |  |  |  | **821831412.57** | **371459159.02** | **202966134.38** |  |  |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 17 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **DELINQUENCY LOAN DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | | | | | | | **Payment Workout** | **Payment Workout** | | | | |
| | | | | | | | | **Status** | **Strategy** | | | | |
| <br>**Loan ID** | <br>**OMCR** | **Actual**<br> **Principal**<br> **Balance** | **Paid**<br> **Through**<br> **Date** | **Current P&I**<br> **Advances**<br> **(Net of ASER)** | **Total P&I**<br> **Advances**<br> **Outstanding** | **Cumulative**<br> **Accrued Unpaid**<br> **Interest Advances** | **Other Expense**<br> **Advances**<br> **Outstanding** | **(2** | **(3** | **Most Recent**<br> **Special Serv**<br> **Transfer Date** | <br> **Foreclosure**<br> **Date** | <br> **Bankruptcy**<br> **Date** | <br> **REO**<br> **Date** |
| 304101859 | 30 | 9401987.23 | 01/06/2020 | - | - | 170892.73 | - | 3 | 2 | 01/21/2020 |  |  |  |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 18 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **COLLATERAL PERFORMANCE - DELINQUENCY AND LOAN STATUS DETAIL** |
| &nbsp;&nbsp;&nbsp;&nbsp; *–* |

---

 **August 15, 2025**

---

| | | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  |  |  |  | **Delinquent** | **Delinquent** |  |  |  |  |  |  |  |  |  |  |
|  | | | **(Does not include loans in Bankruptcy, Foreclosure, or REO)** | **(Does not include loans in Bankruptcy, Foreclosure, or REO)** | **(Does not include loans in Bankruptcy, Foreclosure, or REO)** | **(Does not include loans in Bankruptcy, Foreclosure, or REO)** | | |  |  |  |  |  |  |  |
|  |  | **30** |  | **60** |  | **90** | **120** | **120** | **Bankruptcy** | **Bankruptcy** | **Foreclosure** | **Foreclosure** |  | **REO** |  |
| **Distribution** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| **Date** | **Count** | **Balance** | **Count** | **Balance** | **Count** | **Balance** | **Count** | **Balance** | **Count** | **Balance** | **Count** | **Balance** | **Count** |  | **Balance** |
|  | **0** | **0** | **0** | **0** | **0** | **0** | **1** | **8770446** | **0** | **0** | **0** | **0** | **0** |  | **0** |
| **08/15/2025** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | **0.0%** | **0.0%** | **0.0%** | **0.0%** | **0.0%** | **0.0%** | **2.1%** | **0.0%** | **0.0%** | **0.0%** | **0.0%** | **0.0%** | **0.0%** |  | **0.0%** |
|  | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 07/17/2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 06/17/2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 05/16/2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 0 | 0 | 1 | 8342938 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 04/17/2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 1 | 8368611 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 03/17/2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 02/18/2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 01/17/2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 12/17/2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 11/18/2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 10/18/2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |
|  | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8770446 | 0 | 0 | 0 | 0 | 0 |  | 0 |
| 09/17/2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 2.1% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |  | 0.0% |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 19 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **APPRAISAL REDUCTION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | &nbsp;&nbsp;&nbsp;&nbsp; **Beginning**<br> **Scheduled Balance** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Ending**<br> **Scheduled Balance** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Appraisal**<br> **Reduction Amount** | **Appraisal**<br> **Reduction Date** | **Most Recent**<br> **ASER Amount** | **Cumulative**<br> **ASER Amount** |
| 1647637 | 27 | Clinton Crossings Medical Office | 5722566.98 | 5687142.21 | - | 11/12/2024 | - | - |
| 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 7228068.59 | 02/11/2025 | - | 571999.49 |
| **Total** | **Count = 2** |  | **14493013.09** | **14457588.32** | **7228068.59** |  | **-** | **571999.49** |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 20 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL APPRAISAL REDUCTION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | | | &nbsp;&nbsp;&nbsp;&nbsp; **Beginning** | **Ending** | **Appraisal** | **Appraisal** | | |
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Most Recent**<br> **ASER Amount** | **Cumulative**<br> **ASER Amount** |
| 8/15/2025 | 1647637 | 27 | Clinton Crossings Medical Office | 5722566.98 | 5687142.21 | - | 11/12/2024 | - | - |
| 8/15/2025 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 7228068.59 | 02/11/2025 | - | 571999.49 |
| 7/17/2025 | 1647637 | 27 | Clinton Crossings Medical Office | 5758543.78 | 5722566.98 | - | 11/12/2024 | - | - |
| 7/17/2025 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 7228068.59 | 02/11/2025 | - | 571999.49 |
| 6/17/2025 | 1647637 | 27 | Clinton Crossings Medical Office | 8316178.80 | 5758543.78 | - | 11/12/2024 | - | - |
| 6/17/2025 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 7228068.59 | 02/11/2025 | - | 571999.49 |
| 5/16/2025 | 1647637 | 27 | Clinton Crossings Medical Office | 8342937.93 | 8316178.80 | - | 11/12/2024 | - | - |
| 5/16/2025 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 7228068.59 | 02/11/2025 | - | 571999.49 |
| 4/17/2025 | 1647637 | 27 | Clinton Crossings Medical Office | 8368610.56 | 8342937.93 | - | 11/12/2024 | - | - |
| 4/17/2025 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 7228068.59 | 02/11/2025 | - | 571999.49 |
| 3/17/2025 | 1647637 | 27 | Clinton Crossings Medical Office | 8397172.91 | 8368610.56 | - | 11/12/2024 | - | - |
| 3/17/2025 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 7228068.59 | 02/11/2025 | - | 571999.49 |
| 2/18/2025 | 1647637 | 27 | Clinton Crossings Medical Office | 8422646.39 | 8397172.91 | - | 11/12/2024 | - | - |
| 2/18/2025 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 7228068.59 | 02/11/2025 | - | 571999.49 |
| 1/17/2025 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 12/17/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 11/18/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 10/18/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 9/17/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 8/16/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 7/17/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 6/17/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 5/17/2024 | 1647637 | 27 | Clinton Crossings Medical Office | 8651745.34 | 8626087.62 | - | 12/11/2023 | - | - |
| 5/17/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 4/17/2024 | 1647637 | 27 | Clinton Crossings Medical Office | 8676284.02 | 8651745.34 | - | 12/11/2023 | - | - |
| 4/17/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 3/15/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 2/16/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 6077655.10 | 02/12/2024 | - | 571999.49 |
| 1/18/2024 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 4876065.98 | 02/13/2023 | - | 571999.49 |
| 12/15/2023 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 4876065.98 | 02/13/2023 | - | 571999.49 |
| 11/17/2023 | 304101859 | 30 | 4901 West Irving Park | 8770446.11 | 8770446.11 | 4876065.98 | 02/13/2023 | - | 571999.49 |
| 10/17/2023 | 304101859 | 30 | 4901 West Irving Park | 8786300.63 | 8770446.11 | 4876065.98 | 02/13/2023 | 19930.92 | 571999.49 |
| 9/15/2023 | 304101859 | 30 | 4901 West Irving Park | 8800895.09 | 8786300.63 | 4876065.98 | 02/13/2023 | 20595.28 | 552068.57 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 21 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL APPRAISAL REDUCTION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | | | **Beginning** | **Ending** | **Appraisal** | **Appraisal** | | |
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Most Recent**<br> **ASER Amount** | **Cumulative**<br> **ASER Amount** |
| 8/17/2023 | 304101859 | 30 | 4901 West Irving Park | 8815428.10 | 8800895.09 | 4876065.98 | 02/13/2023 | 20595.28 | 531473.29 |
| 7/17/2023 | 304101859 | 30 | 4901 West Irving Park | 8831099.32 | 8815428.10 | 4876065.98 | 02/13/2023 | 19930.92 | 510878.01 |
| 6/16/2023 | 304101859 | 30 | 4901 West Irving Park | 8845505.16 | 8831099.32 | 4876065.98 | 02/13/2023 | 20595.29 | 490947.09 |
| 5/17/2023 | 304101859 | 30 | 4901 West Irving Park | 8861053.81 | 8845505.16 | 4876065.98 | 02/13/2023 | 19930.92 | 470351.80 |
| 4/17/2023 | 1647637 | 27 | Clinton Crossings Medical Office | 8969923.99 | 8946467.53 | - | 12/12/2022 | - | - |
| 4/17/2023 | 304101859 | 30 | 4901 West Irving Park | 8875333.54 | 8861053.81 | 4876065.98 | 02/13/2023 | 20595.28 | 450420.88 |
| 3/17/2023 | 304101859 | 30 | 4901 West Irving Park | 8893176.62 | 8875333.54 | 4876065.98 | 02/13/2023 | 18602.19 | 429825.60 |
| 2/17/2023 | 304101859 | 30 | 4901 West Irving Park | 8907321.10 | 8893176.62 | 4876065.98 | 02/13/2023 | 20595.29 | 411223.41 |
| 1/18/2023 | 304101859 | 30 | 4901 West Irving Park | 8921406.03 | 8907321.10 | 3964600.49 | 02/11/2022 | 16745.48 | 390628.12 |
| 12/16/2022 | 304101859 | 30 | 4901 West Irving Park | 8936645.39 | 8921406.03 | 3964600.49 | 02/11/2022 | 16205.30 | 373882.64 |
| 11/18/2022 | 304101859 | 30 | 4901 West Irving Park | 8950606.86 | 8936645.39 | 3964600.49 | 02/11/2022 | 16745.48 | 357677.34 |
| 10/17/2022 | 304101859 | 30 | 4901 West Irving Park | 8965727.22 | 8950606.86 | 3964600.49 | 02/11/2022 | 16205.30 | 340931.86 |
| 9/16/2022 | 304101859 | 30 | 4901 West Irving Park | 8979566.25 | 8965727.22 | 3964600.49 | 02/11/2022 | 16745.48 | 324726.56 |
| 8/17/2022 | 304101859 | 30 | 4901 West Irving Park | 8993347.01 | 8979566.25 | 3964600.49 | 02/11/2022 | 16745.48 | 307981.08 |
| 7/15/2022 | 304101859 | 30 | 4901 West Irving Park | 9008293.21 | 8993347.01 | 3964600.49 | 02/11/2022 | 16205.31 | 291235.60 |
| 6/17/2022 | 304101859 | 30 | 4901 West Irving Park | 9021953.02 | 9008293.21 | 3964600.49 | 02/11/2022 | 16745.48 | 275030.29 |
| 5/17/2022 | 304101859 | 30 | 4901 West Irving Park | 9036782.65 | 9021953.02 | 3964600.49 | 02/11/2022 | 16205.30 | 258284.81 |
| 4/15/2022 | 304101859 | 30 | 4901 West Irving Park | 9050322.51 | 9036782.65 | 3964600.49 | 02/11/2022 | 16745.48 | 242079.51 |
| 3/17/2022 | 304101859 | 30 | 4901 West Irving Park | 9067499.87 | 9050322.51 | 3964600.49 | 02/11/2022 | 15124.95 | 225334.03 |
| 2/17/2022 | 304101859 | 30 | 4901 West Irving Park | 9080910.41 | 9067499.87 | 3964600.49 | 02/11/2022 | 16745.48 | 210209.08 |
| 1/18/2022 | 304101859 | 30 | 4901 West Irving Park | 9094264.48 | 9080910.41 | 2716535.50 | 03/11/2021 | 11473.97 | 193463.60 |
| 12/17/2021 | 304101859 | 30 | 4901 West Irving Park | 9108799.44 | 9094264.48 | 2716535.50 | 03/11/2021 | 11103.84 | 181989.63 |
| 11/18/2021 | 304101859 | 30 | 4901 West Irving Park | 9122036.09 | 9108799.44 | 2716535.50 | 03/11/2021 | 11473.97 | 170885.79 |
| 10/18/2021 | 304101859 | 30 | 4901 West Irving Park | 9136457.88 | 9122036.09 | 2716535.50 | 03/11/2021 | 11103.84 | 159411.82 |
| 9/17/2021 | 304101859 | 30 | 4901 West Irving Park | 9149578.09 | 9136457.88 | 2716535.50 | 03/11/2021 | 11473.97 | 148307.98 |
| 8/17/2021 | 304101859 | 30 | 4901 West Irving Park | 9162643.06 | 9149578.09 | 2716535.50 | 03/11/2021 | 11473.97 | 136834.01 |
| 7/16/2021 | 304101859 | 30 | 4901 West Irving Park | 9176899.38 | 9162643.06 | 2716535.50 | 03/11/2021 | 11103.84 | 125360.04 |
| 6/17/2021 | 304101859 | 30 | 4901 West Irving Park | 9189849.32 | 9176899.38 | 2716535.50 | 03/11/2021 | 11473.97 | 114256.20 |
| 5/17/2021 | 304101859 | 30 | 4901 West Irving Park | 9203994.77 | 9189849.32 | 2716535.50 | 03/11/2021 | 11103.84 | 102782.23 |
| 5/17/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 52238198.79 | 52142057.56 | - |  | (152355.24) | - |
| 4/16/2021 | 304101859 | 30 | 4901 West Irving Park | 9216830.63 | 9203994.77 | 2716535.50 | 03/11/2021 | 11473.97 | 91678.39 |
| 4/16/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 52327266.50 | 52238198.79 | 13176669.56 | 12/11/2020 | - | 152355.24 |
| 3/17/2021 | 1648607 | 24 | Hotel Indigo El Paso | 10395520.76 | 10376494.06 | - |  | (10601.99) | - |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 22 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL APPRAISAL REDUCTION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | | | **Beginning** | **Ending** | **Appraisal** | **Appraisal** | | |
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Scheduled Balance Scheduled Balance Reduction Amount Reduction Date** | **Most Recent**<br> **ASER Amount** | **Cumulative**<br> **ASER Amount** |
| 3/17/2021 | 304101859 | 30 | 4901 West Irving Park | 9233374.53 | 9216830.63 | 2716535.50 | 03/11/2021 | 10363.58 | 80204.42 |
| 3/17/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 52436131.77 | 52327266.50 | 13176669.56 | 12/11/2020 | 47399.41 | 152355.24 |
| 2/18/2021 | 1648607 | 24 | Hotel Indigo El Paso | 10410402.46 | 10395520.76 | - | 12/11/2020 | - | 10601.99 |
| 2/18/2021 | 304101859 | 30 | 4901 West Irving Park | 9246086.69 | 9233374.53 | 1675140.96 | 04/13/2020 | 7075.38 | 69840.84 |
| 2/18/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 52524413.46 | 52436131.77 | 13176669.56 | 12/11/2020 | 52477.92 | 104955.83 |
| 1/15/2021 | 1648607 | 24 | Hotel Indigo El Paso | 10425223.98 | 10410402.46 | - | 12/11/2020 | - | 10601.99 |
| 1/15/2021 | 304101859 | 30 | 4901 West Irving Park | 9258745.33 | 9246086.69 | 1675140.96 | 04/13/2020 | 7075.38 | 62765.46 |
| 1/15/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 52612344.58 | 52524413.46 | 13176669.56 | 12/11/2020 | 52477.91 | 52477.91 |
| 12/17/2020 | 1648607 | 24 | Hotel Indigo El Paso | 10441347.57 | 10425223.98 | - | 12/11/2020 | - | 10601.99 |
| 12/17/2020 | 304101859 | 30 | 4901 West Irving Park | 9272610.03 | 9258745.33 | 1675140.96 | 04/13/2020 | 6847.14 | 55690.08 |
| 12/17/2020 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 52706678.26 | 52612344.58 | 13176669.56 | 12/11/2020 | - | - |
| 11/18/2020 | 1648607 | 24 | Hotel Indigo El Paso | 10456043.96 | 10441347.57 | 2614010.99 | 11/12/2020 | 10601.99 | 10601.99 |
| 11/18/2020 | 304101859 | 30 | 4901 West Irving Park | 9285157.00 | 9272610.03 | 1675140.96 | 04/13/2020 | 7075.38 | 48842.94 |
| 10/19/2020 | 304101859 | 30 | 4901 West Irving Park | 9298914.07 | 9285157.00 | 1675140.96 | 04/13/2020 | 6847.14 | 41767.56 |
| 9/17/2020 | 304101859 | 30 | 4901 West Irving Park | 9311350.29 | 9298914.07 | 1675140.96 | 04/13/2020 | 7075.38 | 34920.42 |
| 8/17/2020 | 304101859 | 30 | 4901 West Irving Park | 9323734.15 | 9311350.29 | 1675140.96 | 04/13/2020 | 7075.38 | 27845.04 |
| 7/17/2020 | 304101859 | 30 | 4901 West Irving Park | 9337334.02 | 9323734.15 | 1675140.96 | 04/13/2020 | 6847.14 | 20769.66 |
| 6/17/2020 | 304101859 | 30 | 4901 West Irving Park | 9349608.49 | 9337334.02 | 1675140.96 | 04/13/2020 | 7075.38 | 13922.52 |
| 5/15/2020 | 304101859 | 30 | 4901 West Irving Park | 9363102.92 | 9349608.49 | 1675140.96 | 04/13/2020 | 6847.14 | 6847.14 |
| 4/17/2020 | 304101859 | 30 | 4901 West Irving Park | 9375268.89 | 9363102.92 | 1675140.96 | 04/13/2020 | - | - |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 23 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **LOAN MODIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| <br> **Loan ID** | | <br> **OMCR** | <br> **Property Name** | **Modification**<br> **Date** | **Modification**<br> **Code (4)** |
| 1749833 |  | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 1648607 |  | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 304101861 |  | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| **Total** | **Count = 3** |  |  |  |  |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 24 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL LOAN MODIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | **Modification**<br> **Date** | **Modification**<br> **Code (4)** |
| 08/15/2025 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 08/15/2025 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 08/15/2025 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 07/17/2025 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 07/17/2025 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 07/17/2025 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 06/17/2025 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 06/17/2025 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 06/17/2025 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 05/16/2025 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 05/16/2025 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 05/16/2025 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 04/17/2025 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 04/17/2025 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 04/17/2025 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 03/17/2025 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 03/17/2025 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 03/17/2025 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 02/18/2025 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 02/18/2025 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 02/18/2025 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 01/17/2025 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 01/17/2025 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 01/17/2025 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 12/17/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 12/17/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 12/17/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 11/18/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 11/18/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 11/18/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 10/18/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 10/18/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |

---

<u> 10/18/2024</u> <u> 304101861</u>   <u> 4 Old Town San Diego Hotel Portfolio</u> <u> 06/01/2020</u> <u> 8</u> <br> <u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 25 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL LOAN MODIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | **Modification**<br> **Date** | **Modification**<br> **Code (4)** |
| 09/17/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 09/17/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 09/17/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 08/16/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 08/16/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 08/16/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 07/17/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 07/17/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 07/17/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 06/17/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 06/17/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 06/17/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 05/17/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 05/17/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 05/17/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 04/17/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 04/17/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 04/17/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 03/15/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 03/15/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 03/15/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 02/16/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 02/16/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 02/16/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 01/18/2024 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 01/18/2024 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 01/18/2024 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 12/15/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 12/15/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 12/15/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 11/17/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 11/17/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 11/17/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 26 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL LOAN MODIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | **Modification**<br> **Date** | **Modification**<br> **Code (4)** |
| 10/17/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 10/17/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 10/17/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 09/15/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 09/15/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 09/15/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 08/17/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 08/17/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 08/17/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 07/17/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 07/17/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 07/17/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 06/16/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 06/16/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 06/16/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 05/17/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 05/17/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 05/17/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 04/17/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 04/17/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 04/17/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 03/17/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 03/17/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 03/17/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 02/17/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 02/17/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 02/17/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 01/18/2023 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 01/18/2023 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 01/18/2023 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 12/16/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 12/16/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 12/16/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 27 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL LOAN MODIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | **Modification**<br> **Date** | **Modification**<br> **Code (4)** |
| 11/18/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 11/18/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 11/18/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 10/17/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 10/17/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 10/17/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 09/16/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 09/16/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 09/16/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 08/17/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 08/17/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 08/17/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 07/15/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 07/15/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 07/15/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 06/17/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 06/17/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 06/17/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 05/17/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 05/17/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 05/17/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 04/15/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 04/15/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 04/15/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 03/17/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 03/17/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 03/17/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 02/17/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 02/17/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 02/17/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 01/18/2022 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 01/18/2022 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 01/18/2022 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 28 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL LOAN MODIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | **Modification**<br> **Date** | **Modification**<br> **Code (4)** |
| 12/17/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 12/17/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 12/17/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 11/18/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 11/18/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 11/18/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 10/18/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 10/18/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 10/18/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 09/17/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 09/17/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 09/17/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 08/17/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 08/17/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 08/17/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 07/16/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 07/16/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 07/16/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 06/17/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 06/17/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 06/17/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 05/17/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 05/17/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 05/17/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 04/16/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 04/16/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 04/16/2021 | 304101861 | 4 | Old Town San Diego Hotel Portfolio | 06/01/2020 | 8 |
| 03/17/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 03/17/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 02/18/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 02/18/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |
| 01/15/2021 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 01/15/2021 | 1648607 | 24 | Hotel Indigo El Paso | 07/01/2020 | 8 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 29 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL LOAN MODIFICATION DETAIL** |

---

 **August 15, 2025**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | <br> **Property Name** | **Modification**<br> **Date** | **Modification**<br> **Code (4)** |
| 12/17/2020 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 11/18/2020 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 10/19/2020 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 09/17/2020 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |
| 08/17/2020 | 1749833 | 13 | DoubleTree Lafayette | 04/01/2020 | 8 |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 30 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **SPECIALLY SERVICED LOAN DETAIL** |

---

 **August 15, 2025**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| <br>**Loan ID** | <br>**OMCR** | <br> **Workout**<br> **Strategy (3)** | **Special Servicing**<br> **Fee Amount**<br> **Plus Adjustments** | **Ending**<br> **Scheduled**<br> **Balance** | **Ending**<br> **Actual**<br> **Balance** | **Most**<br> **Recent**<br> **Value** | **Most Recent**<br> **Valuation**<br> **Date** | **Most Recent**<br> **Special Servicer**<br> **Transfer Date** | **Most Recent**<br> **Master Servicer**<br> **Return Date** |
| 1647637 | 27 | 11 | 3500.00 | 5687142.21 | 5687142.21 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6100000.00 | 01/14/2025 | 01/21/2020 |  |
| **Total** | **Count = 2** |  | **7000.00** | **14457588.32** | **15089129.44** | **22300000.00** |  |  |  |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 31 of 42© Copyright 2025 Citigroup

------

---

| |
|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HISTORICAL SPECIALLY SERVICED LOANS** |

---

---

| | |
|:---|:---|
| **August 15, 2025** | **August 15, 2025** |
| **Most Recent** | **Most Recent** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Servicer** | **Master Servicer** |

---

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| <br> **Distribution**<br> **Date** | <br>**Loan ID** | <br>**OMCR** | <br> **Workout**<br> **Strategy (3)** | **Special Servicing**<br> **Fee Amount**<br> **Plus Adjustments** | &nbsp;&nbsp; **Ending**<br> **Scheduled**<br> **Balance** | **Ending**<br> **Actual**<br> **Balance** | **Most**<br> **Recent**<br> **Value** | **Most Recent**<br> **Valuation**<br> **Date** | <br> **Special**<br> **Transfer Date** | <br>**Return Date** |
| 08/15/2025 | 1647637 | 27 | 11 | 3500.00 | 5687142.21 | 5687142.21 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 07/17/2025 | 1647637 | 27 | 11 | 3500.00 | 5722566.98 | 5722566.98 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 06/17/2025 | 1647637 | 27 | 11 | 3500.00 | 5758543.78 | 5784409.65 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 05/16/2025 | 1647637 | 27 | 11 | 3500.00 | 8316178.80 | 8316178.80 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 04/17/2025 | 1647637 | 27 | 11 | 3500.00 | 8342937.93 | 8422646.39 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 03/17/2025 | 1647637 | 27 | 11 | 3500.00 | 8368610.56 | 8422646.39 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 02/18/2025 | 1647637 | 27 | 11 | 3500.00 | 8397172.91 | 8422646.39 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 01/17/2025 | 1647637 | 27 | 11 | 3500.00 | 8422646.39 | 8448026.33 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 12/17/2024 | 1647637 | 27 | 11 | 3500.00 | 8448026.33 | 8474316.88 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 11/18/2024 | 1647637 | 27 | 11 | 3500.00 | 8474316.88 | 8499507.08 | 16200000.00 | 09/17/2024 | 09/20/2021 |  |
| 10/18/2024 | 1647637 | 27 | 11 | 3500.00 | 8499507.08 | 8499507.08 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 09/17/2024 | 1647637 | 27 | 11 | 3500.00 | 8525614.66 | 8525614.66 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 08/16/2024 | 1647637 | 27 | 11 | 3500.00 | 8550616.50 | 8550616.50 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 07/17/2024 | 1647637 | 27 | 11 | 3500.00 | 8575526.53 | 8575526.53 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 06/17/2024 | 1647637 | 27 | 11 | 3500.00 | 8601363.94 | 8626087.62 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 05/17/2024 | 1647637 | 27 | 11 | 3500.00 | 8626087.62 | 8626087.62 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 04/17/2024 | 1647637 | 27 | 11 | 3500.00 | 8651745.34 | 8676284.02 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 03/15/2024 | 1647637 | 27 | 11 | 3500.00 | 8676284.02 | 8676284.02 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 02/16/2024 | 1647637 | 27 | 11 | 3500.00 | 8702794.33 | 8702794.33 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 01/18/2024 | 1647637 | 27 | 11 | 3500.00 | 8727145.56 | 8751407.37 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 12/15/2023 | 1647637 | 27 | 11 | 3500.00 | 8751407.37 | 8776619.70 | 16400000.00 | 10/24/2023 | 09/20/2021 |  |
| 11/17/2023 | 1647637 | 27 | 11 | 3500.00 | 8776619.70 | 8776619.70 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 10/17/2023 | 1647637 | 27 | 11 | 3500.00 | 8800699.84 | 8825736.99 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 09/15/2023 | 1647637 | 27 | 11 | 3500.00 | 8825736.99 | 8825736.99 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 08/17/2023 | 1647637 | 27 | 11 | 3500.00 | 8849636.77 | 8849636.77 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 07/17/2023 | 1647637 | 27 | 11 | 3500.00 | 8873448.79 | 8898227.39 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 06/16/2023 | 1647637 | 27 | 11 | 3500.00 | 8898227.39 | 8898227.39 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 05/17/2023 | 1647637 | 27 | 11 | 3500.00 | 8921860.99 | 8946467.53 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 04/17/2023 | 1647637 | 27 | 11 | 3500.00 | 8946467.53 | 8946467.53 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 03/17/2023 | 1647637 | 27 | 11 | 3500.00 | 8969923.99 | 8969923.99 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 02/17/2023 | 1647637 | 27 | 11 | 3500.00 | 8996491.28 | 8996491.28 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 01/18/2023 | 1647637 | 27 | 11 | 3500.00 | 9019764.05 | 9019764.05 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |

---

<u> Reports Available at sf.citidirect.com</u> v. 21.09.28 Page 32 of 42© Copyright 2025 Citigroup

------

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |  |  |  |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |  |  |  | **August 15, 2025** | **August 15, 2025** |
| **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** |
| | | | | | | | | | **Most Recent** | **Most Recent** |
| | | | | | | | | | **Special Servicer Master Servicer** | **Special Servicer Master Servicer** |
| <br> **Distribution**<br> **Date** | <br>**Loan ID** | <br>**OMCR** | <br> **Workout**<br> **Strategy (3)** | **Special Servicing**<br> **Fee Amount**<br> **Plus Adjustments** | &nbsp;&nbsp; **Ending**<br> **Scheduled**<br> **Balance** | &nbsp;&nbsp; **Ending**<br>&nbsp;&nbsp; **Actual**<br> **Balance** | **Most**<br> **Recent**<br> **Value** | **Most Recent**<br> **Valuation**<br> **Date** | **Transfer Date** | **Return Date** |
| 12/16/2022 | 1647637 | 27 | 11 | 3500.00 | 9042951.36 | 9042951.36 | 18200000.00 | 12/01/2022 | 09/20/2021 |  |
| 11/18/2022 | 1647637 | 27 | 11 | 3500.00 | 9067127.55 | 9067127.55 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 10/17/2022 | 1647637 | 27 | 11 | 3500.00 | 9090140.94 | 9090140.94 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 09/16/2022 | 1647637 | 27 | 11 | 3500.00 | 9114149.42 | 9114149.42 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 08/17/2022 | 1647637 | 27 | 11 | 3500.00 | 9136990.15 | 9159747.00 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 07/15/2022 | 1647637 | 27 | 11 | 3500.00 | 9159747.00 | 9183508.10 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 06/17/2022 | 1647637 | 27 | 11 | 3500.00 | 9183508.10 | 9183508.10 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 05/17/2022 | 1647637 | 27 | 11 | 3500.00 | 9206094.14 | 9252106.98 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 04/15/2022 | 1647637 | 27 | 11 | 3500.00 | 9229690.52 | 9252106.98 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 03/17/2022 | 1647637 | 27 | 11 | 3500.00 | 9252106.98 | 9277738.03 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 02/17/2022 | 1647637 | 27 | 13 | 3500.00 | 9277738.03 | 9299978.05 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 01/18/2022 | 1647637 | 27 | 13 | 3500.00 | 9299978.05 | 9299978.05 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 12/17/2021 | 1647637 | 27 | 13 | 3500.00 | 9322136.41 | 9322136.41 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 11/18/2021 | 1647637 | 27 | 13 | 3500.00 | 9345320.38 | 9345320.38 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 10/18/2021 | 1647637 | 27 | 13 | 3500.00 | 9367312.24 | 9367312.24 | 17100000.00 | 05/05/2017 | 09/20/2021 |  |
| 03/17/2021 | 1648607 | 24 | 8 | - | 10376494.06 | 10376494.06 | 12800000.00 | 09/28/2020 | 08/10/2020 | 02/11/2021 |
| 02/18/2021 | 1648607 | 24 | 1 | - | 10395520.76 | 10395520.76 | 12800000.00 | 09/28/2020 | 08/10/2020 |  |
| 01/15/2021 | 1648607 | 24 | 1 | - | 10410402.46 | 10425223.98 | 12800000.00 | 09/28/2020 | 08/10/2020 |  |
| 12/17/2020 | 1648607 | 24 | 1 | - | 10425223.98 | 10516958.99 | 12800000.00 | 09/28/2020 | 08/10/2020 |  |
| 11/18/2020 | 1648607 | 24 | 1 | - | 10441347.57 | 10531349.63 | 20700000.00 | 02/01/2017 | 08/10/2020 |  |
| 10/19/2020 | 1648607 | 24 | 1 | - | 10456043.96 | 10531349.63 | 20700000.00 | 02/01/2017 | 08/10/2020 |  |
| 09/17/2020 | 1648607 | 24 | 13 | - | 10472046.92 | 10531349.63 | 20700000.00 | 02/01/2017 | 08/10/2020 |  |
| 08/17/2020 | 1648607 | 24 | 13 | - | 10486619.17 | 10531349.63 | 20700000.00 | 02/01/2017 | 08/10/2020 |  |
| 08/15/2025 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6100000.00 | 01/14/2025 | 01/21/2020 |  |
| 07/17/2025 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6100000.00 | 01/14/2025 | 01/21/2020 |  |
| 06/17/2025 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6100000.00 | 01/14/2025 | 01/21/2020 |  |
| 05/16/2025 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6100000.00 | 01/14/2025 | 01/21/2020 |  |
| 04/17/2025 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6100000.00 | 01/14/2025 | 01/21/2020 |  |
| 03/17/2025 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6100000.00 | 01/14/2025 | 01/21/2020 |  |
| 02/18/2025 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6100000.00 | 01/14/2025 | 01/21/2020 |  |
| 01/17/2025 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 12/17/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| Reports Available at sf.citidirect.com | Reports Available at sf.citidirect.com |  | v. 21.09.28 |  | Page 33 of 42 | Page 33 of 42 |  |  |© Copyright 2025 Citigroup |© Copyright 2025 Citigroup |

---

------

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |  |  |  |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |  |  |  | **August 15, 2025** | **August 15, 2025** |
| **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** |
| | | | | | | | | | **Most Recent** | **Most Recent** |
| | | | | | | | | | **Special Servicer Master Servicer** | **Special Servicer Master Servicer** |
| <br> **Distribution**<br> **Date** | <br>**Loan ID** | <br>**OMCR** | <br> **Workout**<br> **Strategy (3)** | **Special Servicing**<br> **Fee Amount**<br> **Plus Adjustments** | &nbsp;&nbsp; **Ending**<br> **Scheduled**<br> **Balance** | **Ending**<br> **Actual**<br> **Balance** | **Most**<br> **Recent**<br> **Value** | **Most Recent**<br>&nbsp;&nbsp; **Valuation**<br> **Date** | **Transfer Date** | **Return Date** |
| 11/18/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 10/18/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 09/17/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 08/16/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 07/17/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 06/17/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 05/17/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 04/17/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 03/15/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 02/16/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 6300000.00 | 12/11/2023 | 01/21/2020 |  |
| 01/18/2024 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 12/15/2023 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 11/17/2023 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 10/17/2023 | 304101859 | 30 | 2 | 3500.00 | 8770446.11 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 09/15/2023 | 304101859 | 30 | 2 | 3500.00 | 8786300.63 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 08/17/2023 | 304101859 | 30 | 2 | 3500.00 | 8800895.09 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 07/17/2023 | 304101859 | 30 | 2 | 3500.00 | 8815428.10 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 06/16/2023 | 304101859 | 30 | 2 | 3500.00 | 8831099.32 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 05/17/2023 | 304101859 | 30 | 2 | 3500.00 | 8845505.16 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 04/17/2023 | 304101859 | 30 | 2 | 3500.00 | 8861053.81 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 03/17/2023 | 304101859 | 30 | 2 | 3500.00 | 8875333.54 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 02/17/2023 | 304101859 | 30 | 2 | 3500.00 | 8893176.62 | 9401987.23 | 7090000.00 | 12/28/2022 | 01/21/2020 |  |
| 01/18/2023 | 304101859 | 30 | 2 | 3500.00 | 8907321.10 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 12/16/2022 | 304101859 | 30 | 2 | 3500.00 | 8921406.03 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 11/18/2022 | 304101859 | 30 | 2 | 3500.00 | 8936645.39 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 10/17/2022 | 304101859 | 30 | 2 | 3500.00 | 8950606.86 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 09/16/2022 | 304101859 | 30 | 2 | 3500.00 | 8965727.22 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 08/17/2022 | 304101859 | 30 | 2 | 3500.00 | 8979566.25 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 07/15/2022 | 304101859 | 30 | 2 | 3500.00 | 8993347.01 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 06/17/2022 | 304101859 | 30 | 2 | 3500.00 | 9008293.21 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 05/17/2022 | 304101859 | 30 | 2 | 3500.00 | 9021953.02 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 04/15/2022 | 304101859 | 30 | 2 | 3500.00 | 9036782.65 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| Reports Available at sf.citidirect.com | Reports Available at sf.citidirect.com |  | v. 21.09.28 |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Page 34 of 42 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Page 34 of 42 |  |  |© Copyright 2025 Citigroup |© Copyright 2025 Citigroup |

---

------

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |  |  |  |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |  |  |  | **August 15, 2025** | **August 15, 2025** |
| **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** |
| | | | | | | | | | **Most Recent** | **Most Recent** |
| | | | | | | | | | **Special Servicer Master Servicer** | **Special Servicer Master Servicer** |
| <br> **Distribution**<br> **Date** | <br>**Loan ID** | <br>**OMCR** | <br> **Workout**<br> **Strategy (3)** | **Special Servicing**<br> **Fee Amount**<br> **Plus Adjustments** | &nbsp;&nbsp; **Ending**<br> **Scheduled**<br> **Balance** | &nbsp;&nbsp; **Ending**<br>&nbsp;&nbsp; **Actual**<br> **Balance** | **Most**<br>&nbsp;&nbsp; **Recent**<br> **Value** | **Most Recent**<br> **Valuation**<br> **Date** | **Transfer Date** | **Return Date** |
| 03/17/2022 | 304101859 | 30 | 2 | 3500.00 | 9050322.51 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 02/17/2022 | 304101859 | 30 | 2 | 3500.00 | 9067499.87 | 9401987.23 | 7450000.00 | 12/19/2021 | 01/21/2020 |  |
| 01/18/2022 | 304101859 | 30 | 2 | 3500.00 | 9080910.41 | 9401987.23 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 12/17/2021 | 304101859 | 30 | 2 | 3500.00 | 9094264.48 | 9401987.23 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 11/18/2021 | 304101859 | 30 | 2 | 3500.00 | 9108799.44 | 9413989.49 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 10/18/2021 | 304101859 | 30 | 2 | 3500.00 | 9122036.09 | 9413989.49 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 09/17/2021 | 304101859 | 30 | 2 | 3500.00 | 9136457.88 | 9413989.49 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 08/17/2021 | 304101859 | 30 | 2 | 3500.00 | 9149578.09 | 9413989.49 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 07/16/2021 | 304101859 | 30 | 2 | 3500.00 | 9162643.06 | 9413989.49 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 06/17/2021 | 304101859 | 30 | 2 | 3500.00 | 9176899.38 | 9413989.49 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 05/17/2021 | 304101859 | 30 | 2 | 3500.00 | 9189849.32 | 9413989.49 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 04/16/2021 | 304101859 | 30 | 2 | 3500.00 | 9203994.77 | 9413989.49 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 03/17/2021 | 304101859 | 30 | 2 | 3500.00 | 9216830.63 | 9413989.49 | 8330000.00 | 01/14/2021 | 01/21/2020 |  |
| 02/18/2021 | 304101859 | 30 | 2 | 3500.00 | 9233374.53 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 01/15/2021 | 304101859 | 30 | 2 | 3500.00 | 9246086.69 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 12/17/2020 | 304101859 | 30 | 2 | 3500.00 | 9258745.33 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 11/18/2020 | 304101859 | 30 | 2 | 3500.00 | 9272610.03 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 10/19/2020 | 304101859 | 30 | 2 | 3500.00 | 9285157.00 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 09/17/2020 | 304101859 | 30 | 2 | 3500.00 | 9298914.07 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 08/17/2020 | 304101859 | 30 | 2 | 3500.00 | 9311350.29 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 07/17/2020 | 304101859 | 30 | 2 | 3500.00 | 9323734.15 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 06/17/2020 | 304101859 | 30 | 2 | 3500.00 | 9337334.02 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 05/15/2020 | 304101859 | 30 | 2 | 3500.00 | 9349608.49 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 04/17/2020 | 304101859 | 30 | 13 | 3500.00 | 9363102.92 | 9413989.49 | 8500000.00 | 02/29/2020 | 01/21/2020 |  |
| 03/17/2020 | 304101859 | 30 | 13 | 3500.00 | 9375268.89 | 9413989.49 | 13900000.00 | 02/15/2017 | 01/21/2020 |  |
| 02/18/2020 | 304101859 | 30 | 13 | 3500.00 | 9389934.22 | 9439117.59 | 13900000.00 | 02/15/2017 | 01/21/2020 |  |
| 05/17/2021 | 304101861 | 4 | 8 | 5441.48 | 52142057.56 | 52142057.56 | 65600000.00 | 10/29/2020 | 08/19/2020 | 04/21/2021 |
| 04/16/2021 | 304101861 | 4 | 1 | (72815.41) | 52238198.79 | 52327266.50 | 82000000.00 | 07/06/2017 | 08/19/2020 |  |
| 03/17/2021 | 304101861 | 4 | 1 | 10195.91 | 52327266.50 | 53238204.74 | 82000000.00 | 07/06/2017 | 08/19/2020 |  |
| 02/18/2021 | 304101861 | 4 | 13 | 11307.34 | 52436131.77 | 53238204.74 | 82000000.00 | 07/06/2017 | 08/19/2020 |  |
| 01/15/2021 | 304101861 | 4 | 13 | 11326.27 | 52524413.46 | 53238204.74 | 82000000.00 | 07/06/2017 | 08/19/2020 |  |
| 12/17/2020 | 304101861 | 4 | 13 | 10980.56 | 52612344.58 | 53238204.74 | 82000000.00 | 07/06/2017 | 08/19/2020 |  |
| Reports Available at sf.citidirect.com | Reports Available at sf.citidirect.com |  | v. 21.09.28 |  | Page 35 of 42 | Page 35 of 42 |  |  |© Copyright 2025 Citigroup |© Copyright 2025 Citigroup |

---

------

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |  |  |  |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |  |  |  | **August 15, 2025** | **August 15, 2025** |
| **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** | **HISTORICAL SPECIALLY SERVICED LOANS** |
| <br> **Distribution**<br> **Date** | <br>**Loan ID** | <br>**OMCR** | <br> **Workout**<br> **Strategy (3)** | **Special Servicing**<br> **Fee Amount**<br> **Plus Adjustments** | **Ending**<br> **Scheduled**<br> **Balance** | **Ending**<br> **Actual**<br> **Balance** | **Most**<br> **Recent**<br> **Value** | **Most Recent**<br> **Valuation**<br> **Date** | **Most Recent**<br> **Special Servicer**<br> **Transfer Date** | **Most Recent**<br> **Master Servicer**<br> **Return Date** |
| 11/18/2020 | 304101861 | 4 | 13 | 11365.35 | 52706678.26 | 53238204.74 | 82000000.00 | 07/06/2017 | 08/19/2020 |  |
| 10/19/2020 | 304101861 | 4 | 13 | 11018.23 | 52793885.58 | 53238204.74 | 82000000.00 | 07/06/2017 | 08/19/2020 |  |
| 09/17/2020 | 304101861 | 4 | 13 | 6621.75 | 52887521.50 | 53238204.74 | 82000000.00 | 07/06/2017 | 08/19/2020 |  |
| 05/15/2020 | 307971614 | 23 | 8 | - | 11908830.85 | 11908830.85 | 55750000.00 | 04/07/2017 |  | 04/17/2020 |
| Reports Available at sf.citidirect.com | Reports Available at sf.citidirect.com |  | v. 21.09.28 |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Page 36 of 42 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Page 36 of 42 |  |  |© Copyright 2025 Citigroup |© Copyright 2025 Citigroup |

---

------

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |  |  |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |  |  |  | **August 15, 2025** |
| **UNSCHEDULED PRINCIPAL DETAIL** | **UNSCHEDULED PRINCIPAL DETAIL** | **UNSCHEDULED PRINCIPAL DETAIL** | **UNSCHEDULED PRINCIPAL DETAIL** | **UNSCHEDULED PRINCIPAL DETAIL** | **UNSCHEDULED PRINCIPAL DETAIL** | **UNSCHEDULED PRINCIPAL DETAIL** | **UNSCHEDULED PRINCIPAL DETAIL** | **UNSCHEDULED PRINCIPAL DETAIL** |
| <br> **Loan ID** | <br> **OMCR** | **Liquidation /**<br> **Prepayment Date** | **Liquid / Prepay**<br> **Code (5)** | **Principal**<br> **Collections** | **Principal**<br> **Adjustments** | **Prepayment Interest**<br> **Excess / (Shortfall)** | **Prepayment**<br> **Penalties (PPP)** | **Yield Maintenance**<br> **Penalties (YM)** |
| No Loans with Unscheduled Principal Activity to Report. | No Loans with Unscheduled Principal Activity to Report. | No Loans with Unscheduled Principal Activity to Report. |  |  |  |  |  |  |
| Reports Available at sf.citidirect.com v. 21.09.28 | Reports Available at sf.citidirect.com v. 21.09.28 | Reports Available at sf.citidirect.com v. 21.09.28 |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Page 37 of 42 |  |  |© Copyright 2025 Citigroup |© Copyright 2025 Citigroup |

---

------

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |  |  |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |  |  |  | **August 15, 2025** |
| **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** | **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** | **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** | **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** | **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** | **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** | **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** | **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** | **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** | **HISTORICAL UNSCHEDULED PRINCIPAL DETAIL** |
| **Distribution**<br> **Date** | <br> **Loan ID** | <br> **OMCR** | **Liquidation /**<br> **Prepayment Date** | **Liquid / Prepay**<br> **Code (5)** | **Principal**<br> **Collections** | **Principal**<br> **Adjustments** | **Prepayment Interest**<br> **Excess / (Shortfall)** | **Prepayment**<br> **Penalties (PPP)** | **Yield Maintenance**<br> **Penalties (YM)** |
| 6/17/2025 | 1647637 | 27 | 06/01/2025 | 1 | 2531769.15 | - | - | - | - |
| 4/17/2025 | 308511028 | 28 | 04/11/2025 | 2 | 8807720.12 | - | - | - | - |
| 7/17/2023 | 300801627 | 44 | 06/28/2023 | 9 | 4540137.60 | - | - | - | 45473.64 |
| 6/17/2022 | 307971614 | 23 | 06/03/2022 | 5 | 11446234.79 | - | - | - | - |
| 5/17/2022 | 304101836 | 6 | 05/03/2022 | 2 | 42000000.00 | - | - | - | - |
| 9/17/2019 | 1749084 | 22 | 08/01/2018 | 11 | 3156779.24 | - | - | - | 254846.27 |
| Reports Available at sf.citidirect.com | Reports Available at sf.citidirect.com | v. 21.09.28 | v. 21.09.28 |  | Page 38 of 42 |  |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;© Copyright 2025 Citigroup | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;© Copyright 2025 Citigroup |

---

------

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |  |  |  |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |  |  |  |  | **August 15, 2025** | **August 15, 2025** |
| **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** | **LIQUIDATED LOAN DETAIL** |
| <br>**Loan ID** | <br>**OMCR** | **Beginning**<br> **Scheduled**<br> **Balance** | **Most**<br> **Recent**<br> **Value** | **Liquidation**<br> **Sales**<br> **Price** | **Net**<br> **Proceeds**<br> **Received** | <br> **Liquidation**<br> **Expense** | **Net**<br> **Proceeds**<br> **Available** | **Realized**<br> **Loss to**<br> **Trust** | **Date of**<br> **Current**<br> **Adj. to Loan** | <br> **Current Cumulative**<br> **Adj. to Loan Adj. to Loan** | **Loss with**<br> **Cumulative**<br> **Adj. to Trust** |
| No Loans liquidated to Report. | No Loans liquidated to Report. |  |  |  |  |  |  |  |  |  |  |
| Reports Available at sf.citidirect.com | Reports Available at sf.citidirect.com | v. 21.09.28 |  |  |  | Page 39 of 42 |  |  |  |© Copyright 2025 Citigroup |© Copyright 2025 Citigroup |

---

------

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |  |  |  |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |  |  |  |  | **August 15, 2025** | **August 15, 2025** |
| **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** | **HISTORICAL LIQUIDATED LOAN** |
| **Distribution** | **Distribution** | | | | | | | | | | |
| **Date** | **Loan ID OMCR** | **Beginning**<br> **Scheduled**<br> **Balance** | **Most**<br> **Recent**<br> **Value** | **Liquidation**<br> **Sales**<br> **Price** | **Net**<br> **Proceeds**<br> **Received** | <br> **Liquidation**<br> **Expense** | **Net**<br> **Proceeds**<br> **Available** | **Realized**<br> **Loss to**<br> **Trust** | **Date of**<br> **Current**<br> **Adj. to Loan** | <br> **Current Cumulative**<br> **Adj. to Loan Adj. to Loan** | **Loss with**<br> **Cumulative**<br> **Adj. to Trust** |
| No Loans liquidated to Report. | No Loans liquidated to Report. |  |  |  |  |  |  |  |  |  |  |
| Reports Available at sf.citidirect.com | Reports Available at sf.citidirect.com | v. 21.09.28 |  |  |  | Page 40 of 42 |  |  |  |© Copyright 2025 Citigroup |© Copyright 2025 Citigroup |

---

------

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **August 15, 2025** |
| **CREFC® INVESTOR REPORTING PACKAGE LEGENDS** | **CREFC® INVESTOR REPORTING PACKAGE LEGENDS** | **CREFC® INVESTOR REPORTING PACKAGE LEGENDS** | **CREFC® INVESTOR REPORTING PACKAGE LEGENDS** | **CREFC® INVESTOR REPORTING PACKAGE LEGENDS** | **CREFC® INVESTOR REPORTING PACKAGE LEGENDS** |
| 1\|CREFC Investor Reporting Package Legends | 1\|CREFC Investor Reporting Package Legends |  |  |  |  |
|  | **Property Type (1)** |  | **Workout Strategy (3)** |  | **Liquidation/Prepayment Code (5)** |
| MF | Multifamily | 1 | Modification | 1 | Partial Liquidation (Curtailment) |
| RT | Retail | 2 | Foreclosure | 2 | Payoff Prior To Maturity |
| HC | HealthCare | 3 | Bankruptcy | 3 | Disposition / Liquidation |
| IN | Industrial | 4 | Extension | 4 | Repurchase / Substitution |
| MH | Mobile Home Park | 5 | Note Sale | 5 | Full Payoff At Maturity |
| OF | Office | 6 | DPO | 6 | DPO |
| MU | Mixed Use | 7 | REO | 7 | Liquidation prior to 7/1/2006 |
| LO | Lodging | 8 | Resolved | 8 | Payoff With Penalty |
| SS | Self Storage | 9 | Pending Return to Master Servicer | 9 | Payoff With Yield Maintenance |
| SE | Securities | 10 | Deed In Lieu of Foreclosure | 10 | Curtailment With Penalty |
| CH | Cooperative Housing | 11 | Full Payoff | 11 | Curtailment With Yield Maintenance |
| ZZ | Missing Information | 12 | Reps and Warranties |  |  |
| SF | SF | 13 | TBD |  |  |
| WH | Warehouse | 98 | Other |  |  |
| OT | Other |  |  |  |  |
| **Modification Code (4)** | **Modification Code (4)** | **Modification Code (4)** | **Modification Code (4)** | **Modification Code (4)** | **Modification Code (4)** |
|  | **Payment Status of Loan (2)** | **Payment Status of Loan (2)** |  |  |  |
|  |  | 1 | Maturity Date Extension |  |  |
| A | In Grace Period | 2 | Amortization Change |  |  |
| B | Late, but less than 30 Days | 3 | Principal Write-Off |  |  |
| 0 | Current | 4 | Blank (formerly Combination) |  |  |
| 1 | 30-59 Days Delinquent | 5 | Temporary Rate Reduction |  |  |
| 2 | 60-89 Days Delinquent | 6 | Capitalization of Interest |  |  |
| 3 | 90-120 Days Delinquent | 7 | Capitalization of Taxes |  |  |
| 4 | Performing Matured Balloon | 8 | Other |  |  |
| 5 | Non Performing Matured Balloon | 9 | Combination |  |  |
| 6 | 121+ Days Delinquent | 10 | Forbearance |  |  |
| Reports Available at sf.citidirect.com | Reports Available at sf.citidirect.com | v. 21.09.28 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Page 41 of 42 |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;© Copyright 2025 Citigroup |

---

------

---

| | | | |
|:---|:---|:---|:---|
| **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** | **Citigroup Commercial Mortgage Trust 2017-B1** |  |
| **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **Commercial Mortgage Pass-Through Certificates, Series 2017-B1** | **August 15, 2025** |
| **NOTES** | **NOTES** | **NOTES** | **NOTES** |
| No Notes available for this deal at this time. |  |  |  |
| Reports Available at sf.citidirect.com | v. 21.09.28 | Page 42 of 42 |© Copyright 2025 Citigroup |

---

## Exhibit 102: Asset Data File

| Asset Number   | Originator                                                                                         | Origination Date   | Original Loan Amount   | Maturity Date   | Interest Rate (%)   | Property Name                          | Property Type   | City          | State   |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| 1              | Morgan Stanley Bank, N.A.; Citigroup Global Markets Realty Corp.                                   | 06-07-2017         | $25000000.00           | 06-09-2027      | 0.0343              | GENERAL MOTORS BUILDING                | MU              | New York      | NY      |
| 1B             | Morgan Stanley Bank, N.A.; Citigroup Global Markets Realty Corp.                                   | 06-07-2017         | $15200000.00           | 06-09-2027      | 0.0343              | NA                                     |  |  | NA      |
| 1C             | Morgan Stanley Bank, N.A.; Citigroup Global Markets Realty Corp.                                   | 06-07-2017         | $37500000.00           | 06-09-2027      | 0.0343              | NA                                     |  |  | NA      |
| 1A             | Morgan Stanley Bank, N.A.; Citigroup Global Markets Realty Corp.                                   | 06-07-2017         | $15000000.00           | 06-09-2027      | 0.0343              | NA                                     |  |  | NA      |
| 2              | Morgan Stanley Bank, N.A.; Wells Fargo Bank, N.A.; Barclays Bank PLC                               | 07-28-2017         | $59000000.00           | 08-01-2027      | 0.0377              | LAKESIDE SHOPPING CENTER               | RT              | Metairie      | LA      |
| 3              | Morgan Stanley Bank, N.A.                                                                          | 06-29-2017         | $56250000.00           | 07-01-2027      | 0.0414              | 411 EAST WISCONSIN                     | OF              | Milwaukee     | WI      |
| 4              | Citi Real Estate Funding Inc.                                                                      | 07-25-2017         | $56000000.00           | 08-06-2027      | 0.0463              | Old Town San Diego Hotel Portfolio     | LO              |  | CA      |
| 4-001          |  |  |  |  |  | COURTYARD BY MARRIOTT OLD TOWN         | LO              | San Diego     | CA      |
| 4-002          |  |  |  |  |  | FAIRFIELD INN & SUITES OLD TOWN        | LO              | San Diego     | CA      |
| 5              | Bank of America, N.A.                                                                              | 07-21-2017         | $52500000.00           | 08-01-2027      | 0.03418             | TWO FORDHAM SQUARE                     | MU              | Bronx         | NY      |
| 6              | Citi Real Estate Funding Inc.                                                                      | 07-07-2017         | $42000000.00           |  | 0.0498              | CHATEAU MARMONT                        |  |  |  |
| 7              | Citi Real Estate Funding Inc.                                                                      | 07-14-2017         | $41700000.00           | 08-06-2027      | 0.0432              | 327-331 EAST HOUSTON STREET            | MF              | New York      | NY      |
| 8              | Citi Real Estate Funding Inc.                                                                      | 06-29-2017         | $40000000.00           | 07-06-2027      | 0.0394              | Brookwood Self Storage LA-MS Portfolio | SS              |  |  |
| 8-001          |  |  |  |  |  | BALIS SELF STORAGE                     | SS              | Baton Rouge   | LA      |
| 8-002          |  |  |  |  |  | FEU FOLLET SELF STORAGE                | SS              | Lafayette     | LA      |
| 8-003          |  |  |  |  |  | BELLE CHASSE SELF STORAGE              | SS              | Gretna        | LA      |
| 8-004          |  |  |  |  |  | OAK VILLA SELF STORAGE                 | SS              | Baton Rouge   | LA      |
| 8-005          |  |  |  |  |  | HARDING SELF STORAGE                   | SS              | Baton Rouge   | LA      |
| 8-006          |  |  |  |  |  | FLORIDA BOULEVARD SELF STORAGE         | SS              | Baton Rouge   | LA      |
| 8-007          |  |  |  |  |  | INDUSTRIPLEX SELF STORAGE              | SS              | Baton Rouge   | LA      |
| 8-008          |  |  |  |  |  | AMBASSADOR SELF STORAGE                | SS              | Lafayette     | LA      |
| 8-009          |  |  |  |  |  | INTERLINE SELF STORAGE                 | SS              | Baton Rouge   | LA      |
| 8-010          |  |  |  |  |  | FLOWOOD SELF STORAGE                   | SS              | Flowood       | MS      |
| 8-011          |  |  |  |  |  | PEARL SELF STORAGE                     | SS              | Pearl         | MS      |
| 8-012          |  |  |  |  |  | AIRWAY SELF STORAGE                    | SS              | Baton Rouge   | LA      |
| 8-013          |  |  |  |  |  | HIGHWAY 18 SELF STORAGE                | SS              | Jackson       | MS      |
| 9              | Bank of America, N.A.                                                                              | 07-18-2017         | $33875000.00           | 08-01-2027      | 0.04724             | McNeill Hotel Portfolio                | LO              |  |  |
| 9-001          |  |  |  |  |  | HOMEWOOD SUITES BOISE                  | LO              | Boise         | ID      |
| 9-002          |  |  |  |  |  | HILTON GARDEN INN TWIN FALLS           | LO              | Twin Falls    | ID      |
| 9-003          |  |  |  |  |  | HAMPTON INN AND SUITES WEST JORDAN     | LO              | West Jordan   | UT      |
| 10             | Citi Real Estate Funding Inc.                                                                      | 07-11-2017         | $30000000.00           | 08-06-2027      | 0.04366             | WELLINGTON COMMERCIAL CONDO            | RT              | New York      | NY      |
| 11             | Morgan Stanley Bank, N.A.                                                                          | 07-12-2017         | $25125000.00           | 08-01-2027      | 0.0459              | WILSHIRE PLAZA                         | OF              | Troy          | MI      |
| 12             | Morgan Stanley Bank, N.A.                                                                          | 10-25-2016         | $24536250.00           | 11-01-2026      | 0.0419              | TKG 4 Retail Portfolio                 | RT              |  |  |
| 12-001         |  |  |  |  |  | LINCOLN CROSSING                       | RT              | Lincoln       | NE      |
| 12-002         |  |  |  |  |  | BEAVERCREEK                            | RT              | Beavercreek   | OH      |
| 13             | Morgan Stanley Bank, N.A.                                                                          | 07-26-2017         | $24200000.00           | 08-01-2027      | 0.0442              | DOUBLETREE LAFAYETTE                   | LO              | Lafayette     | LA      |
| 14             | Bank of America, N.A.                                                                              | 06-30-2017         | $23000000.00           | 07-01-2027      | 0.04051             | PEDDLERS VILLAGE                       | MU              | Lahaska       | PA      |
| 15             | Morgan Stanley Bank, N.A.                                                                          | 06-30-2017         | $22522500.00           | 07-01-2027      | 0.0416              | THE DORAL                              | MF              | Dallas        | TX      |
| 16             | Citi Real Estate Funding Inc.                                                                      | 06-30-2017         | $22000000.00           | 07-06-2027      | 0.0436              | CORONA PLAZA                           | MU              | Corona        | NY      |
| 17             | Bank of America, N.A.                                                                              | 06-06-2017         | $21500000.00           | 07-01-2027      | 0.038               | 145 HUGUENOT                           | MU              | New Rochelle  | NY      |
| 18             | Bank of America, N.A.; Wells Fargo Bank, National Association; Barclays Bank PLC; Societe Generale | 05-12-2017         | $20457000.00           | 06-01-2027      | 0.036575            | DEL AMO FASHION CENTER                 | RT              | Torrance      | CA      |
| 19             | Citi Real Estate Funding Inc.                                                                      | 07-18-2017         | $15500000.00           | 08-06-2027      | 0.0333              | Defeased                               |  |  |  |
| 20             | Bank of America, N.A.                                                                              | 06-06-2017         | $15250000.00           | 04-01-2027      | 0.0485              | Defeased                               |  |  |  |
| 21             | Citi Real Estate Funding Inc.                                                                      | 07-20-2017         | $15200000.00           | 08-06-2027      | 0.0451              | CityLine Michigan Portfolio            | SS              |  |  |
| 21-001         |  |  |  |  |  | METRO STORAGE - OAK PARK               | SS              | Oak Park      | MI      |
| 21-002         |  |  |  |  |  | EZ STORAGE - WAYNE                     | SS              | Wayne         | MI      |
| 22             | Morgan Stanley Bank, N.A.                                                                          | 07-21-2017         | $14000000.00           | 08-01-2027      | 0.0464              | Defeased                               |  |  |  |
| 23             | Bank of America, N.A.                                                                              | 04-27-2017         | $12500000.00           |  | 0.04642             | CROSSGATES COMMONS                     |  |  |  |
| 24             | Morgan Stanley Bank, N.A.                                                                          | 07-27-2017         | $11000000.00           | 08-01-2027      | 0.04715             | HOTEL INDIGO EL PASO                   | LO              | El Paso       | TX      |
| 25             | Morgan Stanley Bank, N.A.                                                                          | 06-23-2017         | $10935000.00           | 07-01-2027      | 0.0425              | LAFAYETTE OFFICE                       | OF              | Houston       | TX      |
| 26             | Citi Real Estate Funding Inc.                                                                      | 07-06-2017         | $10500000.00           | 07-06-2027      | 0.0392              | SHERATON ORLANDO NORTH FEE             | 98              | Maitland      | FL      |
| 27             | Morgan Stanley Bank, N.A.                                                                          | 07-14-2017         | $10400000.00           | 08-01-2027      | 0.0428              | CLINTON CROSSINGS MEDICAL OFFICE       | OF              | Rochester     | NY      |
| 28             | Bank of America, N.A.                                                                              | 07-18-2017         | $10200750.00           |  | 0.046               | Nevada MHC and Multifamily Portfolio   |  |  |  |
| 28-001         |  |  |  |  |  | LA VILLA                               |  |  |  |
| 28-002         |  |  |  |  |  | ARROW PALMS                            |  |  |  |
| 28-003         |  |  |  |  |  | DOLL HOUSE AND HACIENDA APARTMENTS     |  |  |  |
| 28-004         |  |  |  |  |  | CARRIAGE COURT                         |  |  |  |
| 28-005         |  |  |  |  |  | CIRCLE K                               |  |  |  |
| 29             | Citi Real Estate Funding Inc.                                                                      | 07-03-2017         | $10000000.00           | 07-06-2027      | 0.0425906           | IGT RENO                               | MU              | Reno          | NV      |
| 30             | Citi Real Estate Funding Inc.                                                                      | 07-21-2017         | $9750000.00            | 08-06-2027      | 0.0491              | 4901 WEST IRVING PARK                  | RT              | Chicago       | IL      |
| 31             | Citi Real Estate Funding Inc.                                                                      | 07-27-2017         | $9000000.00            | 08-06-2027      | 0.0408              | FAIRWAY SHOPS                          | RT              | Ka'anapali    | HI      |
| 32             | Citi Real Estate Funding Inc.                                                                      | 07-13-2017         | $8500000.00            | 08-06-2027      | 0.0474              | LUCKY HERCULES                         | RT              | Hercules      | CA      |
| 33             | Morgan Stanley Bank, N.A.                                                                          | 07-31-2017         | $8300000.00            | 08-01-2027      | 0.044               | 226 AND 400 7TH AVENUE                 | MU              | Brooklyn      | NY      |
| 34             | Bank of America, N.A.                                                                              | 06-30-2017         | $7800000.00            | 07-01-2027      | 0.04489             | THE LINKS APARTMENTS                   | MF              | Marysville    | OH      |
| 35             | Bank of America, N.A.                                                                              | 07-13-2017         | $7730000.00            | 08-01-2027      | 0.04405             | US STORAGE MIAMI - MIAMI GARDENS       | SS              | Miami Gardens | FL      |
| 36             | Bank of America, N.A.                                                                              | 07-13-2017         | $6850000.00            | 08-01-2027      | 0.04405             | US STORAGE MIAMI - HIALEAH             | SS              | Hialeah       | FL      |
| 37             | Bank of America, N.A.                                                                              | 07-13-2017         | $6525000.00            | 08-01-2027      | 0.04405             | US STORAGE MIAMI - SPEEDWAY            | SS              | Hialeah       | FL      |
| 38             | Morgan Stanley Bank, N.A.                                                                          | 07-13-2017         | $6250000.00            | 08-01-2027      | 0.0473              | 138 ULSTER AVENUE                      | RT              | Saugerties    | NY      |
| 39             | Citi Real Estate Funding Inc.                                                                      | 07-20-2017         | $6200000.00            | 08-06-2027      | 0.0445              | 1221-1223 AVENUE J                     | RT              | Brooklyn      | NY      |
| 40             | Bank of America, N.A.                                                                              | 07-25-2017         | $6100000.00            | 08-01-2027      | 0.0492              | Defeased                               |  |  |  |
| 41             | Citi Real Estate Funding Inc.                                                                      | 07-06-2017         | $6035000.00            | 07-06-2027      | 0.0457              | Defeased                               |  |  |  |
| 42             | Bank of America, N.A.                                                                              | 06-30-2017         | $5550000.00            | 07-01-2027      | 0.04235             | PARK STREET SELF STORAGE               | SS              | Castle Rock   | CO      |
| 43             | Morgan Stanley Bank, N.A.                                                                          | 06-29-2017         | $5200000.00            | 07-01-2027      | 0.0479              | TRINITY SQUARE CENTER                  | RT              | Goshen        | IN      |
| 44             | Bank of America, N.A.                                                                              | 05-25-2017         | $4850000.00            |  | 0.04836             | MOVE IT SELF STORAGE - ATASCOCITA      |  |  |  |
| 45             | Morgan Stanley Bank, N.A.                                                                          | 06-28-2017         | $4625000.00            | 07-01-2027      | 0.0511              | BARRINGTON CENTRE OFFICE               | OF              | Barrington    | IL      |
| 46             | Bank of America, N.A.                                                                              | 07-10-2017         | $4175000.00            | 08-01-2027      | 0.04773             | Defeased                               |  |  |  |
| 47             | Bank of America, N.A.                                                                              | 07-14-2017         | $3570000.00            | 08-01-2027      | 0.04377             | TOUHY PLAZA                            | OF              | Skokie        | IL      |
| 48             | Bank of America, N.A.                                                                              | 07-10-2017         | $1800000.00            | 08-01-2027      | 0.04953             | Defeased                               |  |  |  |

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