Leo J. Portman
About Leo J. Portman
Leo J. Portman is a lawyer based in Oklahoma City, OK and has been recognized in The Best Lawyers in America® since 2018. Leo J. Portman is recognized in the following practice areas:
- Oklahoma City, Oklahoma
- Corporate Law
- Energy Law
- Litigation - Trusts and Estates
Current Firm: GableGotwals
Education: University of Oklahoma, J.D., graduated 1980 and Southern Methodist University, BBA, graduated 1978
Location: Oklahoma City, OK
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EXPERIENCE Successfully tried numerous lawsuits through jury trial and bench trial, as well as appeal, in both state and federal courts Significant experience in complex commercial arbitration matters filed under the American Arbitration Association Experience in litigation and arbitration matters filed in Oklahoma, Texas, Kansas, Arkansas, Georgia, Colorado, Wyoming and California Testified as an expert witness on matters related to the recovery of attorney fees in complex trust litigation S...
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Adam R. Banner is an Oklahoma City criminal defense attorney whose practice is devoted to representing individuals facing serious criminal charges, investigations, trials, and appeals in Oklahoma state and federal courts. He is the founder of The Law Offices of Adam R. Banner, P.C., which also operates under the trade name Oklahoma Legal Group , and represents clients throughout Oklahoma in complex and high-stakes criminal matters. Banner has extensive experience defending serious felony case...
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As a founding partner at Ball Morse Lowe PLLC , Zach focuses his practice on oil, gas, and energy matters , business law , and Real Estate Law , serving clients in Oklahoma City, Oklahoma and across the region. He approaches each matter with an appreciation for his clients’ time and resources, working to provide practical, efficient, and cost-conscious legal solutions for complex legal and business issues. Zach represents companies operating throughout Oklahoma, North Dakota, Montana, W...
Eric is a partner in the firm's Oklahoma City office and Editor in Chief of CounselorLibrary.com's Spot Delivery publication. He assists national and state banks, savings associations, credit unions, mortgage bankers, other licensed lenders, motor vehicles dealers and automotive finance companies in the development and maintenance of nationwide consumer mortgage and automobile finance programs; online motor vehicle sales programs; litigation funding programs; and electronic payment programs. ...
David A. Branscum is a lawyer recognized by Best Lawyers in the practice area of Medical Malpractice Law - Defendants. David A. practices law in Oklahoma City, Oklahoma Best Lawyers has recognized David A. Branscum since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which David A. Branscum is held by other lawyers.
Over 30 years representing defendants in business and complex litigation, including commercial and employment disputes, securities, class action and antitrust cases. Has lectured in the areas of trial practice, civil procedure, and insurance law. Former President of the Oklahoma County Bar Association, 2007-08.
Mark R. McPhail is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation and Litigation - Real Estate. Mark R. practices law in Oklahoma City, Oklahoma Best Lawyers has recognized Mark R. McPhail since 2013. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Mark R. McPhail is held by other lawyers.
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