James J Gross

James J Gross

THYDEN GROSS AND CALLAHAN, LLP • Chevy Chase, MD
Divorce SeparationManufacturingPersonal InjuryReal EstateTax

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Contact

Email
Phone
(301) 246-2892
Address
5425 Wisconsin Avenue, Chevy Chase, MD, 20815-4639, US

Professional

About

Managing Partner of Thyden Gross & Callahan, LLP, a law firm in Chevy Chase, Maryland. Mediator, collaborative lawyer and arbitrator. Author or co-author of four books, “File for Divorce in Maryland, Virginia and the District of Columbia”, “Money and Divorce”,“Fathers’ Rights (The Best Interest of Your Child Includes You)” and "Splitxville". Editor of two blogs, “Maryland Divorce Legal Crier” and “Fathers’ Rights (Not Just Every Other Weekend)”. Speaker on family law at various seminars and appearances on television and radio. Selected among top lawyers in Maryland and DC by Super Lawyers Magazine and Washingtonian Magazine, rated “Superb” by and “av” by Martindale-Hubbell. More You can read more of my life experiences if you want to know how I got here. I was born in Jefferson City, Missouri, and grew up in Hannibal, Missouri, boyhood home of Mark Twain. When I was 16, I took a correspondence course and passed a government test to obtain a First Class Radio Telephone Operator License, and got a job as an announcer, news reporter and engineer at my dad’s radio station. I studied Chemical Engineering at the University of Missouri in Columbia, and graduated in 1970 with a BSChE. Procter & Gamble hired me to work in its International Division in Cincinnati, Ohio. I was there for about a year when Uncle Sam drafted me for the Viet Nam War. I spent a year producing television shows for the Signal Corp. at Fort Gordon, Georgia, and another year working on long range patrol rations as a chemical engineer at the U.S. Army Labs in Natick, Massachusetts. When I got out of the army, I went to law school at the University of Missouri in Columbia, where I made the law review and clerked for the Public Defender. I graduated with a JD in 1975. The Federal Communications hired me to come to Washington, DC, and work as an attorney in the Broadcast Division. After two years, Satellite Business Systems, a partnership of IBM, Comsat and Aetna. During that time, I earned a Master of Laws in Taxation from Georgetown University in 1982. Trammel, Rand, Nathan & Lincoln hired me from Satellite Business Systems after two years, and I set up my own practice a year after that. I merged that firm into Amram, Hahn & Gross where I was the managing partner and worked on real estate tax appeals. Whiteford, Taylor and Preston hired me from that firm, and I co-founded Thyden Gross & Callahan, LLP, a year later. I am past president of Metropolitan Washington Mensa and the Collaborative Law Society. I have served on the Board of Directors of Sheet Metal Manufacturing, Inc., Affiliated Community Counselors, Inc., and the DC Capitols Track and Field Club. I play racketball and I live in Chevy Chase, Maryland, with my wife, two sons and two cats.

About Divorce Separation Law

Divorce attorneys guide couples through the legal process of ending their marriage. They handle property division, custody, support, and other divorce-related matters. Common matters include contested divorce, uncontested divorce, property division, alimony.

Credentials

Education
1982 Georgetown University Law Center LL.M - Master of Laws 1975 University of Missouri - Columbia School of Law JD - Juris Doctor 1970 University of Missouri, Columbia BS - Bachelor of Science
Languages
English

Recognition & Involvement

Awards
2025 Maryland & DC Super Lawyers, Super Lawyers 2025 Best Family Law Practice in the DC Metro Area, Expertise 2025 AV Preeminent, Avvo 2024 Best Family Law Practice in the DC Metro Area, Expertise 2024 Maryland & DC Super Lawyers, Super Lawyers
Publications
2025 Thyden Gross and Callahan LLP Legal Crier Blog 2013 Apress It's Splitsville (Surviving Your Divorce) 2006 Sphinx Legal (Second Edition) File for Divorce in Maryland, Virginia and the District of Columbia 2006 Sphinx Publishing Money and Divorce 2006 Sphinx Publishing (Second Edition) Fathers' Rights (The Best Interest of Your Child Includes You)
Associations
1994 - Present Maryland State Bar Association 1994 - Present Montgomery County Bar Association 1976 - Present District of Columbia Bar 2002 - 2008 Collaborative Law Association Founding Member and Past President 1982 - 2008 Metropolitan Washington Mensa Past President
Speaking
2009 KMOX Radio Divorce in a Recession 2009 Comission for Women Pro Se Divorce 2009 Comission for Women Negotiating a Separation Agreement with Your Spouse
Updated: Mar 08, 2026