Mario Perez Dolan

Michael B. Johnson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. Michael B., who practices law in Dallas, Texas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael B. is held by other top lawyers in the same geographic and legal practice area.

Colin R. Hatcher is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Insurance. Colin R., who practices law in Dallas, Texas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Colin R. is held by other top lawyers in the same geographic and legal practice area.

Gregg Davis counsels clients in the areas of real estate, capital markets, finance, business transactions, and environmental transactions. His experience includes: acquisitions, sales, lending, leasing, and brokerage; capital markets (CMBS and CDO), distressed real estate receiverships, sales and management; and construction. Gregg adeptly deals with a broad range of commercial real estate issues including conservation easements, wetlands, LEED certification, transfer fees, platting, zoning a...

John Leininger joined Otteson Shapiro's Dallas office in January, 2016. Mr. Leininger is a key member of the firm’s Bankruptcy & Creditors’ Rights and Litigation practice areas. He focuses on core bankruptcy matters, bankruptcy litigation, and general civil litigation. He was named to The Best Lawyers in America© 2021 for his work in Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. After graduating law school, Mr. Leininger served as a law clerk ...

John is a lifetime member of the 82nd Airborne Association and the U.S. Army Ranger Association. He served his country as a Staff sergeant in the U.S. Army from 1990 to 1996 and was also an Airborne Ranger, a significant achievement that requires dedication, determination, exceptional mental toughness, and a commitment to excel. The selection process for becoming an Airborne Ranger is highly competitive and rigorous and includes physical fitness assessments, mental aptitude evaluations, speci...

Mark Johansen's practice focuses on complex commercial litigation in state and federal courts. He also regularly represents clients in arbitration proceedings before the American Arbitration Association (AAA), Judicial Arbitration and Mediation Services (JAMS), and the Financial Industry Regulatory Authority (FINRA). Mark has handled litigation and arbitrations involving mergers and acquisitions, contract disputes, business torts, labor/employment, trade secrets, securities/shareholder litiga...

Krista P. Hanvey is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Krista P., who practices law in Dallas, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Krista P. is held by other top lawyers in the same geographic and legal practice area.

Joe Cleveland has practiced in the area of commercial and intellectual property litigation for over 30 years. He has extensive trial and appellate experience representing entrepreneurs, inventors, and private and publicly-traded companies. His practice includes a broad range of complex commercial litigation involving patent, copyright, trademark, trade secrets, antitrust, contracts, employment, oil and gas, securities, and other commercial matters. He has tried cases in both state and federal...

Ryan Griffitts is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Ryan, who practices law in Dallas, Texas, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ryan is held by other top lawyers in the same geographic and legal practice area.

Gary L. Nickelson is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Gary L., who practices law in Fort Worth, Texas, has been recognized since 1995. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gary L. is held by other top lawyers in the same geographic and legal practice area.