NOTICE OF APPEARANCE

FEDERAL TRADE COMMISSION

WASHINGTON, D.C. 20580

CASE NAME FILE/DOCKET NUMBER

Pursuant to Section 4.1 of the Commission’s Rules of Practice, I (we) am (are) entering in the above 

proceeding the appearance of

1. COUNSEL OR REPRESENTATIVE

Include the name, address, email address, and telephone number of each 

counsel or representative entering an appearance in the above proceeding,

Include the address and telephone numbers of all persons, partnerships, 

corporations, or associations on whose behalf this Notice of Appearance 

is being filed.

3. ASSOCIATE/ASSISTANT DIRECTOR

4. SIGNATURE OF SENIOR COUNSEL 5. DATE SIGNED

Return this form to: Federal Trade Commission 

Room H-113 

600 Pennsylvania Avenue, N.W. 

Washington, D.C. 20580

FTC Form 232 (rev. 7/11)

2. RESPONDENT(S) OR THIRD PARTY(IES)

counsel supporting the complaint (Complete Items 1, 3, 4, and 5 below)

counsel or representative for the respondent (Complete Items 1, 2, 4, and 5 below)

counsel or representative for a third party (Complete Items 1, 2, 4, and 5 below)

IN THE MATTER OF LORENZO RUIZ D09419

Darrell J. Vienna CA SBN: 163794

5256 S. Mission Road, Ste. 703-808

Bonsall, CA 92003

626.590.9999

horselawyer@gmail.com

Carlo Fisco CA SBN: 166274

P.O. Box 2554

Culver City, CA 90231

310.390.3311

cfisco@aol.com

Lorenzo Ruiz

366 W. La Verne Avenue

Pomona, CA 91767

626.808.5338

Oct. 16, 2023

FEDERAL TRADE COMMISSION | OFFICE OF THE SECRETARY | FILED 10/19/2023 OSCAR NO. 608788 -PAGE Page 1 of 4 * PUBLIC *
IN THE MATTER OF LORENZO RUIZ (DO9419) 

SUPPLEMENT TO NOTICE OF APPEARANCE

I, DARRELL J. VIENNA, declare as follows:

1. I am an attorney in good standing of the State Bar of California and the Arizona 

State Bar. I am co-counsel of record for Lorenzo Ruiz. 

2. I am admitted to practice in the Supreme Courts of California and Arizona and 

United States District Court, Central District of California.

Dated: October 16, 2023 

I declare under penalty of perjury that the foregoing is true and correct. 

 Darrell J. Vienna Darrell J. Vienna

FEDERAL TRADE COMMISSION | OFFICE OF THE SECRETARY | FILED 10/19/2023 OSCAR NO. 608788 -PAGE Page 2 of 4 * PUBLIC *
IN THE MATTER OF LORENZO RUIZ (DO9419)

SUPPLEMENT TO NOTICE OF APPEARANCE

I, Carlo Fisco, declare as follows:

1. I am an attorney in good standing of the State Bar of California (SBN 166274).

2. I am co-counsel of record for Lorenzo Ruiz.

3. I am admitted to practice in the Supreme Courts of California and United States District 

Court, Central District of California.

Dated: October 19, 2023

I declare under penalty of perjury that the foregoing is true and correct.

Carlo Fisco

Carlo Fisco

FEDERAL TRADE COMMISSION | OFFICE OF THE SECRETARY | FILED 10/19/2023 OSCAR NO. 608788 -PAGE Page 3 of 4 * PUBLIC *
CERTIFICATE OF SERVICE

I hereby certify that on October 19, 2023, I filed the foregoing documents electronically 

using the Federal Trade Commission’s e-filing system, which will send notification of such filing 

to:

April J. Tabor

Office of the Secretary

Federal Trade Commission

600 Pennsylvania Ave., NW, Rm. H-113

Washington, DC 20580

ElectronicFilings@ftc.gov

The Honorable D. Michael Chappell

Administrative Law Judge

Federal Trade Commission

600 Pennsylvania Ave., NW, Rm. H-110

Washington, DC 20580

oalj@ftc.gov

I also certify that I caused the foregoing document to be served via email upon the following:

Counsel for Horseracing Integrity and Safety Authority

John Forgy (johnforgy1@gmail.com)

Rebecca Price (rprice@sturgillturner.com)

Samuel Reinhardt (samuel.reinhardt@hisaus.org)

Darrell J. Vienna

Darrell J. Vienna

Counsel for Lorenzo Ruiz

FEDERAL TRADE COMMISSION | OFFICE OF THE SECRETARY | FILED 10/19/2023 OSCAR NO. 608788 -PAGE Page 4 of 4 * PUBLIC *