Gilbert AZ Business Attorney

Zachary D. Mastro


  • Administrative Law
  • Banking Law
  • Business Formation
  • Commercial Litigation
  • Commercial Transactions Litigation
  • Construction Litigation
  • Corporate Law
  • Estate Planning and Probate
  • Healthcare Professionals Advocacy
  • Labor and Employment
  • Mergers and Acquisitions
  • Real Estate
  • Securities


Business Law and Commercial Litigation Attorney

Zachary D. Mastro is an associate at Wallin Hester and is licensed to practice law in Arizona. He practices primarily in the areas of business law and commercial litigation.

Born and raised in Phoenix, Zach studied Urban and Regional Development at The University of Arizona. Zach minored in Business Administration. He worked in restaurant development before pursuing a law career.

As a law student at Dedman School of Law at SMU, Zach was a member of the Corporate Law Association. He participated in the Corporate Counsel Externship program and was a legal extern for G6 Hospitality in Carrollton, TX. Zach also received a Certificate in Business Law and Leadership presented by the Robert B. Rowling Center for Business Law and Leadership at SMU.


Southern Methodist University, Dedman School of Law, J.D. 2020

University of Arizona, B.A., Urban and Regional Development with Minor in Business Administration, 2016

Admissions and Qualifications

State of Arizona, 2020

Professional and Civic Activities

The Young Visionaries Board (Director of Membership, Board of Directors)

About Zach

Zach likes to spend time with his two golden retrievers and is an outdoors enthusiast who enjoys hiking, mountain biking, and snowboarding.