EX-10.3




 Exhibit 10.3 

EMPLOYMENT AGREEMENT 

THIS EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of April 8, 2022 but for all purposes shall
become effective on May 2, 2022 (the “Effective Date”), by and among SUN COMMUNITIES, INC., a Maryland corporation (the “REIT”), SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP, a Michigan limited partnership
(“SCOLP”) and FERNANDO CASTRO-CARATINI (the “Executive”). As used herein, “Company” shall refer to the REIT and SCOLP together. 

W I T N E S S E T H: 

WHEREAS, SCOLP operates the business of the REIT; 

WHEREAS, the REIT is the sole general partner of SCOLP; 

WHEREAS, the Executive has historically provided services not only to the REIT, but also to SCOLP; and 

WHEREAS, the Company desires to continue the employment of the Executive, and the Executive desires to continue to be employed by the Company,
on the terms and subject to the conditions set forth below. 
 NOW, THEREFORE, in consideration of the mutual promises contained in this
Agreement and other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the parties agree as follows: 

1. Employment. 

(a) The Company agrees to employ the Executive and the Executive accepts the employment, on the terms and subject to the
conditions set forth below. During the Term (defined below), the Executive shall serve as the Executive Vice President, Chief Financial Officer, Secretary and Treasurer of the REIT, and shall (i) manage the Company’s Accounting and Tax
Departments, (ii) manage and oversee all accounting, financial reporting, tax, budget, financial performance and analysis, debt, investor relations and capital raising activities for the Company and (iii) otherwise do and perform
diligently all such services, acts and things as are customarily done and performed by such officers of companies in similar business and in size of the REIT, together with such other duties as may reasonably be requested from time to time by the
REIT’s Chief Executive Officer or the Board of Directors of the REIT (the “Board”), which duties shall be consistent with the Executive’s positions as set forth above. 

(b) For service as an officer and employee of the Company, the Executive shall be entitled to the full protection of the
applicable indemnification provisions of the Articles of Incorporation and Bylaws of the REIT, as they may be amended from time to time. 

2. Term of Employment. 

(a) Subject to the provisions for termination provided below, the term of the Executive’s employment under this Agreement
shall commence on the Effective Date and shall continue thereafter until the five (5) year anniversary of the Effective Date (the “Initial Term”); provided, however, that following the expiration of the Initial Term, the term
of this Agreement shall be automatically extended for successive terms of one (1) year each thereafter (each a “Renewal Term”), unless either party notifies the other party in writing of its desire to terminate this Agreement at
least ninety (90) days before the end of the Initial Term or the Renewal Term then in effect. The Initial Term and each Renewal Term are collectively referred to as the “Term.” 











 (b) The Executive acknowledges and agrees that the Executive is an “at-will” employee and that the Executive’s employment may be terminated, with or without cause, at the option of the Executive or the REIT. 

3. Devotion to the Company’s Business. The Executive shall devote his best efforts, knowledge, skill, and his entire productive
time, ability and attention to the business of the Company during the Term; provided, however, the Executive’s expenditure of reasonable amounts of time on various charitable and other community activities, or on the Executive’s own
personal investments and projects, shall not be deemed a breach of this Agreement so long as the amount of time so devoted does not materially impair, detract or adversely affect the performance of the Executive’s duties under this Agreement.

 4. Compensation. 

(a) During the Term, the Company shall pay or provide, as the case may be, to the Executive the compensation and other benefits
and rights set forth in Sections 4, 5 and 6 of this Agreement. 
 (b) Base Compensation. As compensation for the
services to be performed hereunder, the Company shall pay to the Executive, during his employment hereunder, an annual base salary of Five Hundred Fifty Thousand Dollars ($550,000) (the “Base Salary”). The Base Salary shall be
payable in accordance with the Company’s usual pay practices (including tax withholding), but in no event less frequently than monthly. 

(c) Annual Bonus. The Executive will be eligible to receive a discretionary bonus (the “Bonus”) for
each calendar year during the Term (each, a “Bonus Year”). The amount of any Bonus for any Bonus Year shall be determined by the Compensation Committee of the Board in an amount up to 130% of the aggregate Base Salary for such Bonus
Year. In determining the Bonus for any Bonus Year, the Compensation Committee in its sole discretion may take into account such criteria as it deems relevant or necessary in its discretion, including, without limitation, whether the Executive
fulfills any individual goals and objectives for such Bonus Year set by the Board or Compensation Committee, the Company’s performance and industry factors. Any such individual and Company goals and objectives may be, but need not be, set forth
in a written plan approved by the Compensation Committee before or during any Bonus Year. The determination of the Bonus shall be made by the Compensation Committee of the Board no later than March
7th of the following calendar year and any Bonus shall be paid to the Executive on or before March 15th of the following calendar year. 

(d) Disability. During any period that the Executive fails to perform his duties hereunder as a result of incapacity due
to physical or mental illness (the “Disability Period”), the Executive shall be entitled to receive, first, any amount that the Executive is eligible to receive under any disability benefit plans or programs of the Company and,
second, any social security disability benefits that the Executive is eligible to receive (collectively, the “Program Benefits”). During the Disability Period and until his employment is terminated by the Company pursuant to
Section 7(a)(iii) below, the Company shall pay to the Executive the difference, if any, between the Program Benefits received by the Executive and the amount of his full Base Salary, Bonus and other benefits at the rate in effect for such
period. Any payments to the Executive under the preceding sentence shall be paid in accordance with the Company’s regular payroll practices.  

  
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 (e) Clawback. Notwithstanding anything to the contrary herein, the
Bonus and any other incentive compensation paid or payable to the Executive hereunder shall not be deemed fully earned and vested, and shall be reimbursed by the Executive to the Company if previously paid, to the extent such incentive compensation
becomes subject to clawback pursuant to the provisions of the Dodd-Frank Wall Street Reform and Consumer Protection Act, any rules promulgated thereunder or the rules and regulations of the New York Stock Exchange. Without limiting the foregoing,
the Executive accepts, adopts and agrees to be subject to the Sun Communities, Inc. Executive Compensation “Clawback” Policy dated July 14, 2014, as it may be amended, restated or supplemented from time to time. 

5. Benefits. 

(a) Insurance. The Executive shall be eligible for life, medical, dental, optometry and hospitalization insurance for
himself, his spouse and eligible family members commensurate with similarly situated executive employees of Company and in accordance with plan documents and Company’s policies and procedures. The Executive must satisfy all plan requirements in
order to enroll or continue in any insurance benefit plans. 
 (b) Savings Plans. The Executive, at his election, may
participate, during his employment hereunder, in all retirement plans, 401(k) plans and other savings plans of the Company generally available from time to time to other executive employees of the Company and for which the Executive qualifies under
the terms of the plans (and nothing in this Agreement shall or shall be deemed to in any way affect the Executive’s right and benefits under any such plan except as expressly provided herein). At the discretion of the Compensation Committee of
the Board, the Executive may also be entitled to participate in any equity, stock option or other employee benefit plan that is generally available to senior executives of the Company. In addition to the foregoing, the Executive’s participation
in and benefits under any such plan shall be on the terms and subject to the conditions specified in the governing document of the particular plan. Nothing contained in this Agreement shall be construed to create any obligation on the part of the
Company to establish any such plan or to maintain the existence of any such plan which may be in effect from time to time. 

(c) Annual Paid Vacation. Beginning on the Effective Date of this Agreement, the Executive shall be entitled to four
(4) weeks’ paid vacation time each year, which may be used for any purpose including vacation, sick or personal time. On each anniversary of the Effective Date during the Term, the Executive shall be entitled to four (4) weeks’
paid vacation time. The Executive shall not take more than fourteen (14) consecutive calendar days of vacation without the prior approval of the REIT’s Chief Executive Officer. Unless otherwise approved by the Chief Executive Officer of
the REIT in writing, vacation time does not roll over from one year to the next. Unused vacation time shall not be paid out at the end of the year or upon termination of employment for any reason. 

6. Reimbursement of Business Expenses. The Company shall reimburse the Executive for travel, entertainment and other expenses
reasonably and necessarily incurred by the Executive in the performance of his duties under this Agreement. The Executive shall furnish such documentation with respect to reimbursement to be paid hereunder in accordance with Company’s expense
reimbursement policies. 

  
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 7. Termination of Employment. 

(a) The Executive’s employment under this Agreement may be terminated: 

(i) by either the Executive or the REIT at any time without Cause (as defined below) upon not less than sixty (60) days
written notice; 
 (ii) by the REIT at any time for Cause, without prior notice; 

(iii) by the REIT upon the Executive’s “permanent disability” (as defined below) upon not less than thirty
(30) days written notice; 
 (iv) upon the Executive’s death; and 

(v) by the Executive at any time for Good Reason (as defined below). 

(b) For purposes hereof, for “Cause” shall mean: (i) a material breach of any provision of this Agreement
by the Executive (if the breach is curable, it will constitute Cause only if it continues uncured for a period of twenty (20) days after Executive’s receipt of written notice of such breach from the Company); (ii) the Executive’s
failure or refusal, in any material manner, to perform all lawful services required of him pursuant to this Agreement, which failure or refusal continues for more than twenty (20) days after the Executive’s receipt of written notice of
such deficiency; (iii) the Executive’s commission of fraud, embezzlement or theft, or a crime constituting moral turpitude, in any case, whether or not involving Company, that in the reasonable good faith judgment of the REIT, renders the
Executive’s continued employment harmful to the Company; (iv) the Executive’s misappropriation of Company assets or property, including, without limitation, obtaining reimbursement through fraudulent vouchers or expense reports; or
(v) the Executive’s conviction or the entry of a plea of guilty or no contest by the Executive with respect to any felony or other crime that, in the reasonable good faith judgment of the REIT, adversely affects the Company or its
reputation or business. The Company shall determine in its sole discretion whether Executive is terminated for Cause or has resigned with Good Reason. 

(c) For purposes hereof, the Executive’s “permanent disability ” shall be deemed to have occurred if the
Executive, by reason of the Executive’s physical or mental disability or impairment which cannot be accommodated under the Americans with Disabilities Act (ADA) and which can be expected to result in death or can be expected to last for a
period of not less than 6 months, (i) is unable to engage in any substantial gainful activity, or (ii) is receiving income replacement benefits for a period of not less than 6 months under an accident and health plan of the Company. The
Company shall determine in its sole discretion whether the Executive is being terminated due to permanent disability. 
 (d)
For purposes hereof, “Good Reason” shall mean: (i) a material breach of this Agreement by the Company that is not cured within thirty (30) days after receiving written notice from the Executive of such breach, which notice
must be provided within ninety (90) days of the initial existence of the Good Reason condition, with the determination as to whether there has been a breach and whether the breach is material to be determined by the Nominating and Corporate
Governance Committee of the Board in the reasonable and good faith exercise of its discretion; (ii) material diminution of, or material reduction or adverse alteration of, the Executive’s duties or responsibilities without the consent of
the Executive, or the Company’s assignment of duties, responsibilities or reporting requirements that are materially inconsistent with his 

  
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positions or that materially expand his duties, responsibilities, or reporting requirements without the consent of the Executive; or (iii) any requirement by the Company that the Executive
relocate to a principal place of business outside of the Detroit, Michigan metropolitan area. Written notice of an event constituting Good Reason must be provided to the Company by the Executive within ninety (90) days of its
occurrence. The Company will have thirty (30) days to cure such occurrence, and the Executive may not terminate this Agreement due to Good Reason more than thirty (30) days following the last day of such cure period (and only if the
Company has failed to cure). 
 8. Compensation Upon Termination or Disability. 

(a) In the event that the REIT terminates the Executive’s employment under this Agreement without Cause pursuant to
Section 7(a)(i) or if the Executive terminates this Agreement for Good Reason pursuant to Section 7(a)(v), (i) the Executive shall be entitled to Base Salary and benefits through the effective date of such termination paid in accordance
with Company’s normal payroll policy, (ii) the Executive shall be entitled to receive a Bonus equal to any amount for such Bonus accrued by the Company and unpaid as of the termination date, which Bonus shall be paid by the Company to the
Executive within thirty (30) days of the effective date of such termination (or such later date as may be required in order to determine the amount of any Bonus being paid to the Executive but in no event later than March 15th of the calendar year following the calendar year that the Executive’s employment is terminated), and (iii) subject to the Executive’s execution of a general release of claims in a
form satisfactory to the Company (a “General Release”), the Company shall pay the Executive monthly an amount equal to one-twelfth (1/12) of the Base Salary (at the rate that would otherwise
have been payable under this Agreement) for a period of up to eighteen (18) months if the Executive fully complies with Sections 12 and 13 of this Agreement (the “Severance Payment”). The first monthly installment of the
Severance Payment shall be paid on the Company’s first payroll date after expiration of the revocation period, in accordance with the Age Discrimination in Employment Act (ADEA), as set forth in the General Release; provided, if the Company
does not have sufficient time to include the first monthly installment of the Severance Payment in such first payroll date, it will be paid on the next payroll date; provided, further, that, regardless of when the Executive actually executes the
General Release, if the applicable revocation period spans two calendar years, the payment of Severance Payments will not commence until the first day of a month in the second calendar year, at which time the Executive will be paid an amount equal
to the aggregate amount of all payments delayed until such actual pay date, and the remaining Severance Payments not so delayed shall thereafter be provided to the Executive according to the payment schedule otherwise set forth in this
Section 8(a). Notwithstanding the foregoing, the Severance Payment shall not be due the Executive if the Executive is entitled to Change in Control Benefits (as defined in Section 10 below). Upon notification by either party to the other
party of the non-renewal of the Initial Term or any Renewal Term as provided in Section 2(a) above, the Executive shall not be entitled to any Severance Payments at the end of the Term. 

(b) If (i) the Company terminates the Executive’s employment under this Agreement for Cause, or (ii) the
Executive voluntarily terminates his employment hereunder, other than for Good Reason pursuant to Section 7(a)(v) hereof, the Executive shall be entitled to no further compensation or other benefits under this Agreement, except for any accrued
and unpaid Base Salary and benefits through the effective date of such termination. 

  
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 (c) In the event of termination of the Executive’s employment under
this Agreement due to the Executive’s permanent disability or death, (i) the Executive (or his heirs, successors and assigns in the event of his death) shall be entitled to any Base Salary and benefits through the effective date of such
termination, in accordance with Section 4(d), (ii) the Executive (or his heirs, successors and assigns in the event of his death) shall be entitled to receive a Bonus equal to any amount for such Bonus accrued by the Company and unpaid as of
the termination date, which Bonus shall be paid by the Company to the Executive or his successors and assigns, as appropriate, within thirty (30) days of the effective date of such termination (or such later date as may be required in order to
determine the amount of any Bonus being paid to the Executive but in no event later than March 15th of the calendar year following the calendar year that the Executive’s employment is
terminated), and (iii) subject to the Executive’s (or, in the event of death, his heirs’, successors’ or assigns’) execution of a General Release and so long as the Executive fully complies with Sections 12 and 13 of this
Agreement, the Company shall pay the Executive (or his heirs, successors and assigns in the event of his death) monthly during the twenty four (24) months following the termination date the difference, if any, between the Program Benefits
received by the Executive during such period and an amount equal to one-twelfth (1/12) of the Base Salary (at the rate that would otherwise have been payable under this Agreement) during such period (the
“Disability Payment”). The first monthly installment of the Disability Payment shall be paid on the Company’s first payroll date after the expiration of the revocation period, in accordance with the Age Discrimination in
Employment Act (ADEA), as set forth in the General Release; provided, if the Company does not have sufficient time to include the first monthly installment of the Disability Payment in such first payroll date, it will be paid on the next payroll
date. The Executive agrees to cooperate in any reasonable requirement to undertake a medical physical examination as may be reasonably requested by an insurance carrier in the event that the Company decides to obtain additional death or disability
insurance coverage on the Executive. 
 (d) Notwithstanding anything to the contrary in this Section 8, the
Company’s obligation to pay, and the Executive’s right to receive, any Bonus, Severance Payment or Disability Payment under this Section 8, shall terminate upon the Executive’s breach of any provision of Section 12 or
Section 13 hereof. In addition, the Executive shall promptly return to the Company any Bonus, Severance Payment, or Disability Payment, upon the Executive’s breach of any provision of Section 12 or Section 13 hereof. 

(e) If during the Notice Period this Agreement is terminated for any reason that would otherwise entitle the Executive to
Severance Payments or Disability Payments in accordance with this Section 8, the Company shall be obligated to pay such Severance Payments and/or Disability Payments only through the end of the Notice Period, and the aggregate amount of
Severance Payments and/or aggregate amount of Disability Payments shall be reduced accordingly. 
 (f) If either party
notifies the other party of the non-renewal of the Initial Term or any Renewal Term as provided in Section 2(a) above, from the date of such notice through termination of employment or the end of the
Term, as applicable (the “Notice Period”), the Company shall continue to pay the Base Salary and provide benefits described in this Agreement to the Executive, provided that the Executive continues to faithfully and diligently
perform his duties under this Agreement and in accordance with Company policies. 
 9. Resignation of Executive. Upon any termination
of the Executive’s employment under this Agreement, the Executive shall be deemed to have resigned from any and all offices and directorships held by the Executive in the Company and/or any of the Affiliates (as defined in Section 12
below). 

  
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 10. Effect of Change in Control. 

(a) Subject to the Executive’s execution of a General Release of claims in a form satisfactory to the Company or its
successor, the Company or its successor shall pay the Executive the Change in Control Benefits (as defined below) if there has been a Change in Control (as defined below) and any of the following events (each a “Triggering Event”)
has occurred: (i) the Executive’s employment under this Agreement is terminated by the Company or its successor without Cause in accordance with Section 7(a)(i) at any time within twenty-four (24) months after the Change in
Control, (ii) the Executive terminates his employment under this Agreement for Good Reason in accordance with Section 7(a)(v) at any time within twenty-four (24) months after the Change in Control; or (iii) upon a Change in
Control under Section 10(g)(ii), the Company or its successor does not expressly assume all of the terms and conditions of this Agreement. 

(b) For purposes of this Agreement, the “Change in Control Benefits” shall mean the following benefits: 

(i) A cash payment equal to (A) two and 99/100 (2.99) times the Base Salary in effect on the date of such Change in
Control, less (B) any amounts paid to the Executive under this Agreement following a Change in Control, but prior to the occurrence of a Triggering Event, payable within sixty (60) days of the Change in Control or, in the event that the
cessation of the Executive’s employment hereunder triggers the Change in Control Benefits, payable within thirty (30) days after such cessation of employment; and 

(ii) Continued receipt of all group health benefits set forth in Section 5(a) of this Agreement, until the earlier of
(A) one year following the Change in Control (which period shall run concurrently with the Executive’s COBRA period) or (B) the commencement of comparable coverage from another employer. The provision of any one benefit by another
employer shall not preclude the Executive from continuing participation in Company benefit programs provided under this Section 10(b)(ii) that are not provided by the subsequent employer. The Executive shall promptly notify the Company upon
receipt of benefits from a new employer comparable to any benefit provided under this Section 10(b)(ii). 

  
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 (c) Notwithstanding anything to the contrary herein, in the event that
within sixty (60) days prior to a Change in Control (i) the Executive’s employment under this Agreement is terminated by the Company or its successor without Cause in accordance with Section 7(a)(i), or (ii) the Executive
terminates his employment under this Agreement for Good Reason in accordance with Section 7(a)(v), such termination, in either case, shall be deemed to have been made in connection with the Change in Control, such termination shall be a
Triggering Event, and (x) the Executive shall be entitled to receive the Change in Control Benefits, (y) the Executive shall be entitled to be reimbursed for any COBRA premiums previously paid by the Executive, and (z) in accordance
with Section 11 below, subject to the Executive’s execution of a General Release of claims in a form satisfactory to the Company or its successor, all stock options or other stock based compensation awarded to the Executive shall become
fully vested and immediately exercisable and all stock options may be exercised by the Executive at any time within one (1) year after such Triggering Event. 

(d) The Change in Control Benefits shall be in addition to the acceleration of the vesting of stock options and other stock
based compensation as a result of a Triggering Event. 
 (e) Notwithstanding anything to the contrary contained herein, in
the event it shall be determined that any compensation payment or distribution by the Company to or for the benefit of the Executive would be subject to the excise tax imposed by Section 4999 of the Internal Revenue Code of 1986, as amended
(the “Code”), the Change in Control Benefits will be reduced to the extent necessary so that no excise tax will be imposed, but only if to do so would result in the Executive retaining a larger amount, on an after-tax basis, taking into account the excise and income taxes imposed on all payments made to the Executive hereunder. 

(f) The Company shall pay to the Executive all reasonable legal fees and expenses incurred by the Executive in obtaining or
enforcing any right or benefit provided by this Section 10, but only to the extent that the Company is determined to be liable to the Executive for breach of this Section 10 as a part of a final judgment on the merits pursuant to binding
arbitration. 
 (g) For purposes of this Agreement, a “Change in Control” shall be deemed to have occurred
upon the closing of any of the following transactions: 
 (i) if any person or group of persons acting together (other than
(a) the Company or any person (A) who as of the date hereof was a director or officer of the REIT, or (B) whose shares of Common Stock of the REIT are treated as “beneficially owned” by any such director or officer, or
(b) any institutional investor (filing reports under Section 13(g) rather than 13(d) of the Securities Exchange Act of 1934, as amended, including any employee benefit plan or employee benefit trust sponsored by the Company)), becomes a
beneficial owner, directly or indirectly, of securities of the REIT representing fifty percent (50%) or more of either the then-outstanding Common Stock of the REIT or the combined voting power of the REIT then-outstanding voting securities (other than as a result of an acquisition of securities directly from the REIT); 

(ii) if the Company sells all or substantially all of the Company’s assets to any person (other than a wholly-owned
subsidiary of the Company formed for the purpose of changing the Company’s corporate domicile); 

  
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 (iii) if the Company merges or consolidates with another person as a result
of which the shareholders of the REIT immediately prior to such merger or consolidation would beneficially own (directly or indirectly), immediately after such merger or consolidation, securities of the surviving entity representing less than fifty
percent (50%) of the then outstanding voting securities of the surviving entity; or 
 (iv) if the new directors appointed to
the Board during any twelve-month period constitute a majority of the members of the Board, unless (A) the directors who were in office for at least twelve (12) months prior to such twelve-month period (the “Incumbent Directors”) plus (B) the new directors who were recommended or appointed by a majority of the Incumbent Directors constitutes a majority of the members of
the Board. 
 For purposes of this Section 10(g), a “person” includes an individual, a partnership, a corporation, an
association, an unincorporated organization, a trust or any other entity. 
 11. Stock Awards. In the event of termination of the
Executive’s employment under this Agreement for Cause, all stock options or other stock-based compensation awarded to the Executive shall lapse and be of no further force or effect whatsoever in accordance with the Company’s equity
incentive plans. If the Company terminates the Executive’s employment under this Agreement without Cause or if the Executive terminates his employment under this Agreement for Good Reason in accordance with Section 7(a)(v) or upon
the death or permanent disability of the Executive, all stock options and other stock based compensation awarded to the Executive shall become fully vested and immediately exercisable and all stock options may be exercised by the Executive at any
time within one (1) year after the Triggering Event. Upon a Triggering Event or any event described in Section 10(c) of this Agreement, all stock options or other stock-based compensation awarded to the Executive shall become fully vested
and immediately exercisable and all stock options may be exercised by the Executive at any time within one (1) year after the Triggering Event. All stock options and other stock-based compensation award agreements between the Company and the
Executive shall be amended to conform to the provisions of this Section 11. In the event of an inconsistency between this Section 11 and such award agreements, this Section 11 shall control. 

12. Confidential Information. 

(a) The Executive acknowledges the Company’s reliance on and expectation of the Executive’s continued commitment to
performance of his duties and responsibilities related to the protection of Company’s Confidential Information (defined below) and competitive business interests both during and after the term of this Agreement. The Executive further
acknowledges that his position is one of considerable responsibility and requires that the Company expend time and resources to provide him the tools and Confidential Information necessary to oversee operations and grow the Company’s
significant portfolio of business. It is Company’s intent to protect its Confidential Information, in whatever form, whether written, electronic, spoken, or facsimiled, from and against unauthorized use, disclosure, destruction or modification.
Maintaining its Confidential Information in the strictest confidence is essential for the Company’s continued success. The Company must also protect its reasonable competitive business interests by preventing employees and competitors from
using its Confidential Information. 

  
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 (b) Throughout his employment with Company, he has been and will be privy to
confidential information belonging to Company in any form, whether in writing, orally, electronically, or otherwise (collectively, “Confidential Information”), which includes, but is not limited to, any information that is or
relates to: 
 (i) information that is trade secret under applicable trade secret or other law; 

(ii) information concerning the past or present business or affairs of the Company or Affiliates which includes, but is not
limited to, historical and current financial statements, general ledgers, balance sheets and income statements; financial projections, plans, policies and budgets; accounting practices; tax returns and accountants’ materials; information
pertaining to accounting, financial reporting and auditing; bank statements; notes; accounts payable and receivable; historical, current and projected sales; capital spending budgets and plans; business plans and strategic methods; marketing
techniques and advertising plans; legal matters, including but not limited to litigation strategy and attorney-client privileged information; publications; information pertaining to prospective customers, customers, customer lists and files,
vendors, contractors, business partners; joint ventures or acquisitions; pricing information; contracts; operational and/or administrative protocols, plans, or rules; human resource information including the names and backgrounds of key personnel,
personnel issues, salaries, bonuses, and incentive plans; all other information regarding the operation and administration of Company or Affiliates; and all information obtained from review of Company’s or Affiliate’s documents or property
or discussions with Company or Affiliates regardless of the form of the communication; 
 (iii) information not available to
competitors of Company or Affiliates, the use or disclosure of which might reasonably be construed to be contrary to the interests of Company or Affiliates or give other persons or entities to whom such information is disclosed a competitive
advantage over Company or Affiliates; and 
 (iv) all notes, analyses, compilations, studies, summaries and other material
prepared by Company or Affiliates containing or based, in whole or in part, upon any information included in the above (collectively, the “Confidential Information”). 

(c) The Executive will not at any time, for so long as any Confidential Information remains confidential or otherwise remains
wholly or partially protectable, use or disclose any Confidential Information, directly or indirectly, to any person outside of Company, or any corporation owned or controlled by the Company, or under common control with the Company (the
“Affiliates”) unless compelled by judicial process. Upon receipt of judicial process or governmental request for such information, the Executive shall immediately notify the Company and shall cooperate with the Company in efforts to
limit such disclosure and shall not make such disclosure unless compelled to do so. 
 (d) Promptly upon the termination of
this Agreement for any reason or upon Company’s request at any time, the Executive (or in the event of the Executive’s death, his personal representative) shall return to the Company all property (whether prepared by or at the direction of
the Company or the Executive) including, but not limited to, devices, company keys, passwords, security badges, hardware, software, letters, handbooks, manuals, customer lists, corporate credit card, originals and all copies of all documents, books,
binders, records, materials, memoranda and other data constituting or pertaining to Confidential Information, in any form, within his possession, custody or control, including all copies of documents sent by electronic mail or otherwise to any
personal computer owned or accessed by the Executive. 

  
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 (e) Notwithstanding above, the Executive shall not be held criminally or
civilly liable under any Federal or State trade secret law for the disclosure of a trade secret that is made in confidence to a Federal, State, or local government official or to an attorney solely for the purpose of reporting or investigating a
suspected violation of law. In addition, the Executive shall not be held criminally or civilly liable under any Federal or State trade secret law for the disclosure of a trade secret that is made in a complaint or other document filed in a lawsuit,
arbitration or other proceeding, if such filing is made under seal. If the Executive files a lawsuit for retaliation by Company for reporting a suspected violation of law, he may disclose the trade secret to his attorney and use the trade secret
information in the court or arbitration proceeding, so long as the Executive files any document containing the trade secret under seal and does not disclose the trade secret, except pursuant to court or arbitral order. Nothing in this Agreement
is intended to conflict with 18 U.S.C. § 1833(b) or create liability for disclosures of trade secrets that are expressly allowed by 18 U.S.C. § 1833(b). 

13. Covenant Not to Compete and Non-Solicitation. 

(a) The Executive will not, for a period commencing on Effective Date and ending upon the expiration of twenty-four
(24) months following the termination of the Executive’s employment under this Agreement for any reason, including, without limitation, the expiration of the term of this Agreement (the
“Non-competition Period”), either directly or indirectly, engage in, or have an interest in or be associated with (whether as an officer, director, stockholder, partner, associate, employee,
consultant, owner, contractor, or otherwise) any corporation, firm or enterprise which is engaged in the same business or businesses as the Company, including, without limitation, the development, ownership, leasing, management, financing or sales
of manufactured housing or land lease communities, recreational vehicle resorts, camping or glamping resorts with detached dwellings, marinas, manufactured or other homes, or camping and glamping dwellings, anywhere within the United States or any
other country or territory in which the Company or its subsidiaries engaged or planned to engage in any such business in the twelve (12) months preceding Executive’s separation of employment; provided, however, that,
notwithstanding anything to the contrary herein, (A) in the event that the Company terminates the Executive’s employment hereunder without Cause, the Non-competition Period shall be reduced to twelve
(12) months, and (B) the Executive may invest in any publicly held corporation engaged, if such investment does not exceed one percent (1%) in value of the issued and outstanding capital stock of such corporation, and the Executive does
not directly or indirectly provide any services to such corporation. 
 (b) For a period commencing on the date of this
Agreement and ending upon the expiration of the Non-competition Period, the Executive shall not, either directly or indirectly, divert, or by aid to others, do anything which would tend to divert, from the
Company or any Affiliate any trade or business with any customer or supplier with whom the Executive had any contact or association during the term of the Executive’s employment with the Company or with any party whose identity or potential as
a customer or supplier was confidential or learned by the Executive during his employment by the Company. 
 (c) For a period
commencing on the date of this Agreement and ending upon the expiration of the Non-competition Period, the Executive shall not, either directly or indirectly, call upon, compete for, solicit for employment,
hire or engage as an employee or contractor any person with whom the Executive was acquainted while employed by the Company. 

  
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 (d) Notwithstanding the foregoing, other than manufactured housing
communities, recreational vehicle resorts, manufactured homes, marinas or any other business or industry in which Company conducts business, the Executive shall not be prohibited from making investments in any entity engaged in the business of
development, ownership, leasing, sales, management or financing of single family or multi-family housing, condominiums, townhome communities or other forms of housing so long as he is not employed by, and he
does not perform any services for, any such business (other than services incidental to the oversight of his investment). 
 14.
Reasonableness of Restrictive Covenants. 
 (a) The Executive acknowledges and agrees that the restrictions set forth
in this Agreement, including without limitation the time period, scope and geographical restrictions in Sections 12 and 13, are fair and reasonable. The Executive recognizes that Company conducts its business nationally and internationally and that
these restrictions are reasonably tailored to protect Company’s legitimate, global business interests and Confidential Information. The Executive has contemplated the effect that these restrictions may have upon him following termination of
employment with Company and that it will be necessary to structure his activities and operations so as not to violate this Agreement. 

(b) If the Executive violates any part of Section 13 of this Agreement during the period specified, such period will be
extended for the time that the Executive is in violation of the Agreement. The purpose of this provision is to provide Company with full compliance with Section 13 for the total period specified following the Executive’s termination. 

(c) If any court or arbitrator determines that any of the covenants, or any part of any covenant, is invalid or unenforceable,
the remainder of the covenants shall not be affected and shall be given full effect, without regard to the invalid portion. If any court or arbitrator determines that any of the covenants, or any part of any covenant, is unenforceable because of its
duration or geographic scope, such court or arbitrator shall have the power to reduce the duration or scope, as the case may be, and, enforce such provision in such reduced form. 

(d) Sections 12 and 13 of this Agreement shall remain enforceable and shall survive the termination of the Executive’s
employment and the termination of this Agreement, indefinitely, and shall not be deemed merged or extinguished by any act or omission, absent the specific signed written intention of the Parties to do so. The Executive agrees and understands that
the remedy at law for any breach by him of Section 12 or Section 13 will be inadequate and that the damages flowing from such breach are not readily susceptible to being measured in monetary terms. Accordingly, it is acknowledged that,
upon adequate proof of the Executive’s violation of any legally enforceable provision of Section 12 or Section 13 but without the necessity of proving actual damages, the Company shall be entitled to immediate injunctive relief and
may obtain a temporary order restraining any threatened or further breach from the Oakland County Circuit Court, other circuit court with appropriate jurisdiction, or through the Arbitrator (as defined below) as set forth below (in Company’s
sole discretion). Nothing in this Section shall be deemed to limit the Company’s remedies at law or in equity for any breach by the Executive of any of the provisions of Section 12 or Section 13 which may be pursued or availed of by
the Company. 

  
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 135. Arbitration. Except as permitted in Section 14 above, any and all disputes, controversies
or claims of any nature whatsoever relating to, or arising out of, this Agreement or the Executive’s employment, whether in contract, tort, or otherwise (including, without limitation, claims of wrongful termination of employment, claims under
Title VII of the Civil Rights Act, the Fair Labor Standards Act, the Americans with Disabilities Act, the Age Discrimination in Employment Act, or comparable state or federal laws, and any other laws dealing with employees’ rights and
remedies), shall be settled by mandatory arbitration administered by the American Arbitration Association under its National Rules for the Resolution of Employment Disputes (the “Rules”) and the following provisions: (a) a
single arbitrator (the “Arbitrator”), mutually agreeable to the Company and the Executive, shall preside over the arbitration and shall make all decisions with respect to the resolution of the dispute, controversy or claim between
the parties; (b) in the event that the Company and the Executive are unable to agree on an Arbitrator within fifteen (15) days after either party has filed for arbitration in accordance with the Rules, they shall select a truly neutral
arbitrator in accordance with the rules for the selection of neutral arbitrators, who shall be the “Arbitrator” for the purposes of this Section 15; (c) the place of arbitration shall be Southfield, Michigan unless mutually agreed
otherwise; (d) judgment may be entered on any award rendered by the Arbitrator in any federal or state court having jurisdiction over the parties; (e) all fees and expenses of the Arbitrator shall be shared equally between Company and the
Executive; (f) the decision of the Arbitrator shall govern and shall be conclusive and binding upon the parties; (g) the parties shall be entitled to reasonable levels of discovery in accordance with the Federal Rules of Civil Procedure or
as permitted by the Arbitrator, provided, however, that the time permitted for discovery shall not exceed eight (8) weeks and each party shall be limited to two (2) depositions; and (h) this provision shall be enforceable by specific
performance and/or injunctive relief, and shall constitute a basis for dismissal of any legal action brought in violation of the duty to arbitrate. The parties hereby acknowledge that it is their intent to expedite the resolution of any dispute,
controversy or claim hereunder and that the Arbitrator shall schedule the timing of discovery and of the hearing consistent with that intent. Notwithstanding anything to the contrary herein, nothing contained in this Section 15 shall be
construed to preclude Company from obtaining injunctive or other equitable relief from the Oakland County Circuit Court or other court with appropriate jurisdiction to secure specific performance or to otherwise prevent the Executive’s breach
of Section 12 or Section 13 of this Agreement. 
 16. Notice. All notices, consents, waivers, and other communications
under this Agreement must be in writing and will be deemed to have been duly given (a) if personally delivered, on the date of delivery, (b) if delivered by express courier service of national standing for next day delivery (with charges
prepaid), on the business day following the date of delivery to such courier service, (c) if delivered by telecopy (with confirmation of delivery), on the date of transmission if on a business day before 5:00 p.m. local time of the recipient
party (otherwise on the next succeeding business day); (d) if delivered by electronic mail upon confirmation of successful transmission or appropriate response, on the date of transmission if on a business day before 5:00 p.m. local time of the
business address of the recipient party (otherwise on the next succeeding business day); and (e) if deposited in the United States mail, first-class postage prepaid, on the date of delivery, in each case, to the appropriate addresses or
facsimile numbers set forth below (or to such other addresses or facsimile numbers as a party may designate by notice to the other parties in accordance with this Section 16): 

If to the REIT or SCOLP: 
 Sun
Communities, Inc. 
 27777 Franklin Road, Suite 200 

Southfield, Michigan 48034 

Fax: (248) 208-2641 

Attn: Chief Executive Officer 

  
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 If to the Executive: 

Fernando Castro-Caratini 
 c/o
Sun Communities, Inc. 
 27777 Franklin Road, Suite 200 

Southfield, Michigan 48034 

Fax: (248) 208-2644 

In all events, with a copy to: 

Jaffe, Raitt, Heuer & Weiss, P.C. 

27777 Franklin Road, Suite 2500 

Southfield, Michigan 48034 

Fax: (248) 351-3082 

Attn: Arthur A. Weiss 
 17.
Cooperation in Future Matters. The Executive hereby agrees that, for a period of eighteen (18) months following his termination of employment for any reason whatsoever, he shall cooperate with the Company’s reasonable requests
relating to matters that pertain to the Executive’s employment by the Company, including, without limitation, providing information or limited consultation as to such matters, participating in legal proceedings, investigations or audits on
behalf of the Company, or otherwise making himself reasonably available to the Company for other related purposes. Any such cooperation shall be performed at scheduled times taking into consideration the Executive’s other commitments, and the
Executive shall be compensated at a reasonable hourly or per diem rate to be agreed upon by the parties to the extent such cooperation is required on more than an occasional and limited basis. The Executive shall not be required to perform such
cooperation to the extent it conflicts with any requirements of exclusivity of services for another employer or otherwise, nor in any manner that in the good faith belief of the Executive would conflict with his rights under or ability to enforce
this Agreement. 
 18. Miscellaneous. 

(a) The provisions of this Agreement are severable and if any one or more provisions may be determined to be illegal or
otherwise unenforceable, in whole or in part, the remaining provisions and any partially unenforceable provision to the extent enforceable in any jurisdiction nevertheless shall be binding and enforceable. 

(b) Neither the Company nor the Executive may make any assignment of this Agreement or any interest herein, by operation of law
or otherwise, without the prior written consent of the other party; provided that the Company may assign its rights under this Agreement without the consent of the Executive in the event that the Company shall effect a reorganization, consolidate
with or merge into another corporation, partnership, organization or other entity, or transfer all or substantially all of its properties or assets to any other corporation, partnership, organization or other entity. This Agreement shall inure to
the benefit of and be binding upon the Company and the Executive, their respective successors, executors, administrators, heirs and permitted assigns. 

  
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 (c) The failure of either party to enforce any provision or protections of
this Agreement shall not in any way be construed as a waiver of any such provision or provisions as to any future violations thereof, nor prevent that party thereafter from enforcing each and every other provision of this Agreement. The rights
granted the parties herein are cumulative and the waiver of any single remedy shall not constitute a waiver of such party’s right to assert all other legal remedies available to it under the circumstances. 

(d) The Board shall allocate all compensation described in Sections 4, 5, 6, 8 and 10 between the REIT and SCOLP on an annual
basis, after determining the services provided to each entity by the Executive for the relevant period. For tax reporting purposes, all compensation will be appropriately reported to the Executive and Federal and state taxing authorities based upon
the Executive’s legal relationship with each entity as determined under applicable law. The Company may withhold from any amounts payable under this Agreement all federal, state, city or other taxes as the Company is required to withhold
pursuant to any applicable law, regulation or ruling. 
 (e) This Agreement sets forth the entire agreement and understanding
of the parties to it with respect to its subject matter, and supersedes all prior agreements, understandings and communications, whether written or oral, with respect to its subject matter. All prior representations or agreements regarding the
subject matter of this Agreement, whether written or verbal, not expressly incorporated in it, are superseded, and no changes in or additions to this Agreement shall be recognized unless and until made in writing and signed by all parties. 

(f) This Agreement shall be governed by and construed according to the laws of the State of Michigan. 

(g) Captions and Section headings used herein are for convenience and are not a part of this Agreement and shall not be used in
construing it. 
 (h) This Agreement may be executed in two or more counterparts, each of which shall be deemed an original,
but all of which together shall constitute one and the same instrument. 
 (i) Except as otherwise provided in
Section 10(f) above, each party shall pay his or its own fees and expenses, including, without limitation, legal fees, incurred in connection with the transactions contemplated by this Agreement, including, without limitation, any fees incurred
in connection with any arbitration arising out of the transactions contemplated by this Agreement. 
 (j) The intent of the
parties is that payments and benefits under this Agreement comply with Section 409A of the Code, to the extent subject thereto, and accordingly, to the maximum extent permitted, this Agreement shall be interpreted and administered to be in
compliance therewith. In the event that any provision of Agreement or any other agreement or award referenced herein is mutually agreed by the parties to be in violation of Section 409A of the Code, the parties shall cooperate reasonably to
attempt to amend or modify this Agreement (or other agreement or award) in order to avoid a violation of Section 409A of the Code while attempting to preserve the economic intent of the applicable provision to the extent permitted by
Section 409A of the Code. Notwithstanding anything contained herein to the contrary, the Executive shall not be considered to have terminated employment with the Company for purposes of any payments under this Agreement which are subject to
Section 409A of the Code until the Executive would be considered to have incurred a “separation from service” from the Company within the meaning of Section 409A of the Code. Each amount to be paid or benefit to be provided under
this Agreement shall be construed as a separate identified payment for purposes of Section 409A of the Code. Without limiting the foregoing and notwithstanding anything contained herein to the contrary, to the extent required in order to avoid
accelerated taxation and/or tax penalties under Section 409A of the Code, amounts that would otherwise be payable and benefits that would otherwise be provided pursuant to this Agreement or any other arrangement between the Executive and the
Company during the six-month period immediately following the Executive’s separation from service shall instead be paid on the first business day after the date that is six months following the
Executive’s separation from service (or, if earlier, the Executive’s date of death). To the extent required to avoid an accelerated or additional tax under Section 409A of the Code, amounts reimbursable to the Executive under this
Agreement shall be paid to the Executive on or before the last day of the year following the year in which the expense was incurred and the amount of expenses eligible for reimbursement (and in kind benefits provided to the Executive) during one
year may not affect amounts reimbursable or provided in any subsequent year. The Company makes no representation that any or all of the payments described in this Agreement will be exempt from or comply with Section 409A of the Code and makes
no undertaking to preclude Section 409A of the Code from applying to any such payment. For purposes of this Section 18(j), Section 409A of the Code shall include all Treasury regulations and any other guidance promulgated thereunder
or published with respect thereto. 
 [Signatures on following page] 

  
 15 












 IN WITNESS WHEREOF, the parties have executed this Employment Agreement effective as of the
Effective Date. 
  

					
	REIT:
	
	SUN COMMUNITIES, INC.,
	a Maryland corporation
		
	By:	 	 /s/ Gary A. Shiffman

	Name:	 	 Gary A. Shiffman

	Title:	 	 Chief Executive Officer

	
	SCOLP:
	
	SUN COMMUNITIES OPERATING LIMITED
	PARTNERSHIP, a Michigan limited partnership
		
	By:	 	Sun Communities, Inc., a Maryland
		 	corporation, its General Partner
			
		 	By:	 	 /s/ Gary A. Shiffman

		 	Name:	 	 Gary A. Shiffman

		 	Title:	 	 Chief Executive Officer

	
	EXECUTIVE:
	
	 /s/ Fernando Castro-Caratini

	FERNANDO CASTRO-CARATINI