About Jonathan

Biography

Practice Areas

Child Custody 25%

I handle cases in the following areas of Family Law: Divorce, Legal Separation, Child Custody, Hague Convention Cases, International Child Abduction, Mediation, Appeals, Child Support, Maintenance, Prenuptial Agreements, Adoption, QDROs, Modification of Judgments, Child Relocation, Paternity, Contempt and Enforcement Proceedings, and Orders of Protection.

28 years

25%

Child Support 25%

28 years

25%

Divorce and Separation 25%

28 years

25%

Family 25%

28 years

25%

Fees and Rates

We have not found any cost information for this lawyer

Contact for Details

Awards

2014

Licenses

Licensed in Illinois for 27 years

State: Illinois

Acquired: 1999

Active and Authorized to Practice Law

No misconduct found

Licensed in Missouri for 28 years

State: Missouri

Acquired: 1998

Good Standing, Active

No misconduct found

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Location

Law Offices of Jonathan Daniel Marks

(314) 993-6301

Fax

4 CityPlace Drive, Suite 497, Saint Louis, MO, 63141

themarkslawfirm.com

Message Get Directions

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Gallery

Online Presence

Other places you can find Jonathan online.

Jonathan Daniel Marks's Reviews

Avvo Review Score

4.8 /5.0

21 Client Reviews

Showing 1 - 1 of 1 review | 1 star

Posted by Anon | June 16, 2026 | Hired Attorney

# A Devastating Failure of Advocacy During the Most Critical Time of My Life

# A Devastating Failure of Advocacy During the Most Critical Time of My Life I am writing this review under my own name because people deserve to understand my experience. My litigation has now been ongoing for over two years, and since my representation by Jonathan Marks, I have consulted with... multiple highly respected attorneys in Missouri regarding the events that occurred during my case really before it even started. The consistent concern I have heard is not simply about the outcome, but about the process, the lack of preparation, the lack of communication, and decisions that I believe were made without my informed consent. I hired an attorney to protect me during one of the most financially and personally catastrophic periods of my life. My companies were under attack, my financial world was unraveling, and I was navigating an extremely complex divorce and business matter involving significant assets and consequences. Despite the seriousness and complexity of the situation, critical decisions were made before a full financial record had even been developed before the court and before substantive divorce proceedings had even begun. A temporary arrangement was entered that, in my view, mirrored major settlement terms and impacted significant rights and claims without the level of analysis, preparation, and consultation I expected from my counsel and in a hearing that it belonged. What remains most disturbing to me is how those decisions were reached. Negotiations and conversations occurred outside my presence and without my express authorization. When I expressed that I wanted to address my concerns directly before the judge rather than simply accept what was being presented because. everything changed, I did not feel my position was advocated for. in fact I was yelled at while my entire life was on fire. Instead of receiving guidance and protection during a moment of extreme fear and distress, I felt pressured, unheard, and overwhelmed and expressed so. I was facing the potential loss of millions of dollars and years of work that I had built, and I needed an attorney who would fully explain my options, and aggressively protect my interests. No attorney can guarantee a perfect result. That is not my criticism. My criticism is that a client should never leave a critical proceeding feeling they did not understand the consequences of what they were agreeing to or that their own concerns were dismissed. He was fired shortly after I should have ran not walked away from this horrific attorney. The consequences of those decisions have been enormous. I continue to document what I believe exceeds seven figures in financial and business-related damages connected to this period of litigation. The professional, financial, and personal impact has been profound, and years later I am still uncovering and working to repair the damage and my case is not done due to this very event. Based on my experience, I would never retain Jonathan Marks again. If you are considering hiring him, I strongly encourage you to ask difficult questions, demand complete transparency, ensure all significant decisions are thoroughly explained, and make sure your own voice remains central in every major decision affecting your future. He only care about billing you and threatening you if you question his attitude.

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Jonathan Daniel Marks's Lawyer Endorsements

Endorse Jonathan

Michael Izsak

Divorce and separation lawyer | Dec 29

Relationship: Fellow lawyer in community

"I endorse this lawyer. He is an exceedingly knowledgeable and professional domestic lawyer, with a proven track record of success."

Ryan Munro

Family lawyer | Jan 26

Relationship: Opposing Counsel on matter

"I endorse this lawyer."

Jay Galmiche

Divorce and separation lawyer | Dec 14

Relationship: Opposing Counsel on matter

"I endorse this lawyer. Jonathan represents his clients with knowledge and compassion. He is well respected in the legal community. He in an excellent attorney."

John Kershman

Family lawyer | Aug 29

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Michael Waddington

Family lawyer | May 30

Relationship: Fellow lawyer in community

"I endorse Jonathan. He is a highly skilled attorney that is well respected in the legal community."

Joan Coulter

Divorce and separation lawyer | Feb 11

Relationship: Worked together on matter

"I endorse this lawyer."

Jennifer Graves

Family lawyer | Dec 10

Relationship: Fellow lawyer in community

"I endorse this lawyer. Jonathan and I have worked together on many family law types of cases. He is respectful and always prepared."

J. Lacey

Family lawyer | Dec 06

Relationship: Opposing Counsel on matter

"I endorse this lawyer. Jonathan Marks and I have been opposing attorneys on a number of family-law matters over the last 15 years. In my opinion, Jonathan is one of the best family law practitioners in the St. Louis area. His knowledge of the law and his practical, no-nonsense approach to resolving cases makes him that good. When I have a conflict in a family law matter, or when a client is seeking one who specializes in the family law area, I refer them to Jonathan. Those referred clients and friends without exception have thanked me for the referral. He can be a tenacious advocate if needed, but also has the ability to work through troubling issues and find a reasonable resolution to the same that both parties can accept. I believe this latter quality in Jonathan also makes him an excellent mediator in the family law field as well."

Eric Walter

Family lawyer | Oct 23

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Alan Zvibleman

Family lawyer | Mar 08

Relationship: Fellow lawyer in community

"I endorse this lawyer. Jonathan is honest, hard-working and a great advocate for his clients."

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Michael Izsak

Personal injury lawyer

Randall Steele

Family lawyer

Jennifer Graves

Family lawyer

Eric Walter

Litigation lawyer

J. Lacey

Estate planning lawyer

Alan Zvibleman

Family lawyer

Experience

Rating: 10.0 (Superb)

Honors

2026

Super Lawyer, Super Lawyers

2025

Super Lawyer, Super Lawyers

2024

Super Lawyer, Super Lawyers

2023

Super Lawyer, Super Lawyers

2022

Super Lawyer, Super Lawyers

2021

Super Lawyer, Super Lawyers

2020

Super Lawyer, Super Lawyers

2019

Super Lawyer, Super Lawyers

2018

Super Lawyer, Super Lawyers

2017

Super Lawyer, Super Lawyers

2016

Super Lawyer, Super Lawyers

2016

The Best Lawyers in America, Best Lawyers 22nd Edition

2015

Missouri Super Lawyer, Super Lawyers

2015

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell

2015

Nations TOP ONE Percent, National Association of Distinguished Counsel

2015

Top 100 Matrimonial and Family Lawyers, The National Advocates

2015

Top 100 Family Lawyers, American Society of Legal Advocates

2015

Super Lawyer, Super Lawyers

2015

10 Best in Client Satisfaction, American Institute of Family Law Attorneys

2014

Super Lawyer, Super Lawyers

2014

10 Best in Client Satisfaction, American Institute of Family Law Attorneys

2014

Missouri Super Lawyer, Super Lawyers

2014

Top 100 Matrimonial and Family Lawyers, The National Advocates

2014

Top 10 Attorneys, National Academy of Family Law Attorneys

2014

Top 100 Family Lawyers, American Society of Legal Advocates

2014

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell

2013

Super Lawyer, Super Lawyers

2013

Missouri Super Lawyer, Super Lawyers

2013

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell

2011

Missouri Super Lawyers Rising Star, Super Lawyers

2011

Super Lawyer, Super Lawyers

2011

Rising Star, Super Lawyers

2010

Missouri Super Lawyers Rising Star, Super Lawyers

2010

Rising Star, Super Lawyers

2010

Super Lawyer, Super Lawyers

2009

Missouri Super Lawyers Rising Star, Super Lawyers

2009

Rising Star, Super Lawyers

2009

Super Lawyer, Super Lawyers

2008

Missouri Super Lawyers Rising Star, Super Lawyers

2008

Super Lawyer, Super Lawyers

2008

Rising Star, Super Lawyers

2008

Missouri's Up & Coming Lawyers, Missouri Lawyer's Weekly

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Work Experience

1998 - Present

Attorney at Law, The Marks Law Firm, L.L.C.

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Associations

1999 - Present

Illinois State Bar Association

Member

1998 - Present

Missouri State Bar Association

Member

1998 - Present

American Bar Association

Member

1998 - Present

Bar Association of Metropolitan St. Louis

Member

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Sample of Legal Cases

J.T.V. v. M.A.L.

In re Marriage of Al-Hamdy and Noor

K.N. v. S.P.S.

Baker-Bell v. Bell

Barzilay v. Barzilay

Weaver v. Weaver

J.C.W. and T.D.W., Minors, by their next friend, Kelly K. Webb v. Jason L. Wyciskalla

Barzilay v. Barzilay

Southard v. Southard

Burke v. Hutto

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Education

1997

University of Missouri - Columbia School of Law

JD - Juris Doctor

1993

University of Missouri - Columbia School of Journalism

BJ - Bachelor of Journalism

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Speaking Engagements

2015

International Visitor Leadership Program

The Hague Convention on the Civil Aspects of International Child Abduction

2015

American Bar Association, Family Law Section

Winning the Discovery Wars

2014

International Visitor Leadership Program

The Hague Convention on the Civil Aspects of International Child Abduction

2013

TIAM Weekend Custody Battle Thanks to McDonald's

2013

STL Moms Legal Procedures for Adopting a Child

2013

STL Moms

Divorce and College Costs

2013

STL Moms

Who Pays the Divorce Bill

2013

STL Moms

Who Pays for Private School in Divorce

2013

Kelley and Cassandra, LIVE

What it Takes to Adopt a Child

2013

International Visitor Leadership Program

The Hague Convention on the Civil Aspects of International Child Abduction

2013

Fox 2 News Child Support and Taxes

2012

Technology in the Legal Profession iPad for St. Louis County Lawyers

2012

Journey of Discovery

Prenuptial and Postnuptial Agreements

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Languages

English

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Activity

Legal Answers