Atty. Jonathan D. Marks
Jonathan Marks , Family Law Attorney in the St. Louis area, received his Juris Doctorate in 1997 from the University of Missouri – Columbia.
Family Law & More Attorney · Serving Creve Coeur, MO · 28+ Years Experience
Profile Summary
About Jonathan D. Marks at a Glance
Jonathan D. Marks is a family law and adr attorney based in Creve Coeur, Missouri, practicing at The Marks Law Firm LLC. They have 28+ years of legal experience, licensed to practice since 1998. Admitted to practice in Missouri (1998) and Illinois (1999). Educated at University of Missouri School of Law (Columbia) (J.D., 1998). Recognitions include Lawyer of the Year — Family Law (St. Louis) (2026), Lawyer of the Year — Family Law Mediation (St. Louis) (2026), and Best Lawyers in America — Family Law (2026). Serves clients in Creve Coeur, MO and the surrounding metropolitan area.
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About Jonathan D. Marks
- Jonathan Marks, Family Law Attorney in the St. Louis area, received his Juris Doctorate in 1997 from the University of Missouri – Columbia
- Jonathan is admitted to practice in the State of Missouri, the State of Illinois, the United States District Court for the Eastern District of Missouri, the United States District Court for the Western District of Missouri, the United States District Court for the Southern District of Illinois, the United States District Court for the Central District of Illinois, the United States District Court for the Northern District of Illinois and the United States Court of Appeals for the Eight Circuit
Practice Areas Explained
Jonathan D. Marks's Areas of Legal Practice
Each practice area below reflects the types of cases Jonathan D. Marks handles, with a practical overview of what that area of law involves and how it may apply to your situation in Creve Coeur.
Family Law in Creve Coeur
Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.
Jonathan D. Marks is one of 185,688 family law attorneys indexed nationally. Browse family law attorneys in Missouri →
Mediation & Arbitration in Creve Coeur
Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.
Jonathan D. Marks is one of 73,315 adr attorneys indexed nationally. Browse adr attorneys in Missouri →
Jurisdictional Context
Why Local Counsel Matters in Creve Coeur
Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Creve Coeur are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Missouri courts without local counsel or pro hac vice admission.
Creve Coeur Courts and Legal Process
Choosing a Creve Coeur-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Missouri attorneys? Browse all attorneys in Creve Coeur or all attorneys in Missouri.
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Professional Profile
Why Clients in Creve Coeur Choose Jonathan D. Marks
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Jonathan D. Marks's practice in the field of family law and adr.
Decade-Tested Legal Experience
Jonathan D. Marks brings 28+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in Missouri and Illinois, Jonathan D. Marks can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering family law and adr, Jonathan D. Marks can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Creve Coeur
A Creve Coeur-based practice means Jonathan D. Marks attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Jonathan D. Marks Handles in Creve Coeur
Below is a representative sample of the types of matters Jonathan D. Marks has experience with under Missouri law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Jonathan D. Marks directly to discuss the specifics of your situation.
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How People Find Jonathan D. Marks Online
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Jonathan D. Marks's Practice Areas & Specializations
Education & Law School Background
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