Melissa R. Costello

John K. Wittwer is a lawyer recognized by Best Lawyers in the practice areas of Construction Law, Insurance Law and Litigation - Insurance. John K. practices law in Phoenix, Arizona Best Lawyers has recognized John K. Wittwer since 2022. 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 John K. Wittwer is held by other lawyers.

Peter C. Prynkiewicz is a lawyer recognized by Best Lawyers in the practice area of Employment Law - Management. Peter C. practices law in Phoenix, Arizona Best Lawyers has recognized Peter C. Prynkiewicz since 2018. 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 Peter C. Prynkiewicz is held by other lawyers.

Senior partner and Best Lawyers® honoree Lisa Reilly Payton focuses her law practice on estate planning, tax planning, and federal and state tax controversy. Lisa is a popular speaker and has appeared multiple times on the Emmy Award-winning talk show The List. Lisa's estate planning experience includes helping individuals, couples, and business owners identify their planning options and tailoring their choices to their unique situations and goals. In guiding her clients through the plann...

Jasmina Richter practices in the areas of commercial litigation, intellectual property, professional liability defense, construction defect litigation, insurance coverage and bad faith litigation. As part of her insurance coverage and bad faith litigation, Jasmina represents insurers in complex insurance coverage actions. Jasmina analyzes coverage under a wide variety of policies including commercial general liability, commercial property, professional liability, director and officer liabilit...

John A. Conley is a lawyer recognized by Best Lawyers in the practice areas of Administrative / Regulatory Law, Employment Law - Management, Health Care Law, Litigation - Health Care and Litigation - Labor and Employment. John A. practices law in Phoenix, Arizona Best Lawyers has recognized John A. Conley since 2021. 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 i...

Tyler M. Cobb is a lawyer recognized by Best Lawyers in the practice area of Banking and Finance Law. Tyler M. practices law in Phoenix, Arizona Best Lawyers has recognized Tyler M. Cobb 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 Tyler M. Cobb is held by other lawyers.

DAVID L. CASE is a shareholder at Tiffany & Bosco, P.A., with over 35 years of experience in tax planning, estate planning, probate and trust administration, and business transactions. David was involved in finalizing and passing the new Arizona Trust Code, and has written and made presentations on this topic, as well as numerous tax planning matters, for the State Bar of Arizona and other organizations. In addition to the formulation of estate plans while addressing wealth transfer tax i...

Justin Niedzialek is a lawyer recognized by Best Lawyers in the practice area of Commercial Litigation. Justin practices law in Phoenix, Arizona Best Lawyers has recognized Justin Niedzialek since 2027. 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 Justin Niedzialek is held by other lawyers.

Terry’s practice emphasizes corporate business acquisitions and financings and public-private projects, including strategic joint ventures, Native American enterprises and projects, water/wastewater infrastructure development, sports facility financing and physician-hospital contracts. Terry was recently recognized as a 2013 Southwest Super Lawyer, and was named among the 2013 Best Lawyers in America, alongside nearly two-thirds of his fellow G&K shareholders. Having chaired the mul...

JIM O'SULLIVAN represents closely-held businesses, including law firms and other service professionals. Serving as general counsel and primary contact for businesses and their owners, Jim focuses on the ongoing legal needs of these clients, as well as strategic planning for growth and ownership succession opportunities. Jim leverages his considerable planning, negotiation and contract drafting experience to counsel clients through key events such as business formation, joint ventures, mergers...