Christopher D. "Chris" Thomas

Phoenix business and real estate attorney Jim Valletta practices in the areas of real estate transactions, commercial transactions, business litigation and real estate litigation. Jim is a Best Lawyers in America® honoree whose transaction practice involves negotiating, preparing, and analyzing various types of commercial real estate transactions, including purchase agreements, development agreements, title, survey, financing and leasing in connection with industrial, office, retail, apar...

Ms. Villanueva is an attorney in the firm’s Intellectual Property Department. She practices in the areas of domestic and international trademark and copyright prosecution, licensing and enforcement. Ms. Villanueva assists clients with brand development and with identifying various protectable aspects of the clients’ products, services and concepts. She also helps clients with clearing all aspects of advertising, promotional and marketing materials and products, including trademark...

Jennifer Cranston (formerly Ratcliff) focuses her practice in three primary areas: real estate disputes involving condemnation and valuation issues; insurance coverage analysis and bad faith litigation; and public utility regulation. Jennifer’s objective is to provide sound legal advice, exceptional service, and cost-effective resolution for all her clients. She has successfully negotiated favorable settlements, as well as prevailed for clients at hearings, in arbitrations, at trial, an...

Patrick Clisham has extensive experience representing clients in complex corporate transactions, including loan documentation and restructurings, asset acquisitions and sales, lease negotiations and enforcement, and business transactions. Patrick’s experience primarily derives from representing secured and unsecured creditors, corporate debtors, trustees and examiners in corporate bankruptcy proceedings and out of court workouts.Patrick joined Engelman Berger in 2009 after relocating fr...

As a licensed veterinarian, Mark has the medical knowledge to help his clients get the results they deserve. Given his strong medical science background, Mark's practice focuses on tort law, including medical negligence, product liability, and other significant personal injury cases. He has nearly 35 years of experience litigating medical malpractice cases with victories including the landmark Edwards verdict and a transfusion-associated AIDS case that remains one of the largest personal inju...

Chris Welker is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Personal Injury Litigation - Defendants. Chris, who practices law in Phoenix, Arizona, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Chris is held by other top lawyers in the same geographic and legal practice area.

Colin Proksel focuses his practice on complex litigation across a wide set of industries. With over fifteen years of experience, he has a long track record of success representing clients in both state and federal court, alternative dispute resolution processes (including mediation and arbitration), and administrative proceedings. Colin graduated with distinction from the University of Iowa College of Law. Before joining Osborn Maledon, he served as a law clerk to the late Honorable Arthur L....

Lisa M. McKnight is one of six founding lawyers of Salmon, Lewis & Weldon, P.L.C., specializing in natural resources law, environmental law, Indian law, and water rights litigation. Ms. McKnight’s practice focuses on environmental matters, particularly litigation and administrative agency proceedings under the Endangered Species Act, the National Environmental Policy Act, and other federal laws affecting the use of land, water and other natural resources. From the inception of her l...

Mr. Pote’s practice is focused on strategic intellectual property counseling, including invention harvesting, global patent preparation and prosecution, copyright and trademark counseling, and cybersecurity issues, including information security and data privacy. He has been involved in infringement, validity, enforceability studies, IP due diligence and ex parte, and inter-partes patent reexaminations. Representative technologies include software and electronic systems, deep learning s...

Michael Clyde, a partner in the firm's litigation practice, has more than 30 years of experience in securities, corporate governance, professional liability, antitrust and other complex litigation. He has represented securities issuers, directors, officers and professionals in a wide variety of litigation involving securities, corporate governance and financial disclosure and accounting issues. In December 2009, Michael was lead trial counsel for craigslist, Inc. in eBay v. Craig Newmark, whe...