Mark E. Barker
About Mark E. Barker
Mark E. Barker is a lawyer based in Phoenix, AZ and has been recognized in The Best Lawyers in America® since 2009. Mark E. Barker is recognized in the following practice areas:
- Phoenix, Arizona
- Business Organizations (including LLCs and Partnerships)
- Construction Law
- Litigation - Construction
- Litigation - Real Estate
Current Firm: Jennings Haug Keleher McLeod Waterfall LLP
Education: The University of Arizona, J.D., graduated 1984
Location: Phoenix, AZ
Nearby Lawyers
Paul J. McGoldrick is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law, Litigation - Insurance and Personal Injury Litigation - Defendants. Paul J., who practices law in Phoenix, Arizona, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Paul J. is held by other top lawyers in the same geographic and legal practice area.
Jennifer L. Sellers is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Construction Law, Employee Benefits (ERISA) Law, Employment Law - Management and Health Care Law. Jennifer L., who practices law in Phoenix, Arizona, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jennifer L. is held by other top lawyers in the same geographic and legal practice area.
Mike (Mohammad) Kazerouni is one of the founding partners at Kazerouni Law Group APC. For over a decade Mike has dedicated his legal career to the representation of personal injury victims and consumer protection from dangerous and defective products. Mike has successfully represented thousands of clients and litigated hundreds of personal injury and consumer protection cases including wrongful death, traumatic brain injury, burn injuries, defective products litigation, lemon law, among other...
Karen C. Stafford is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Insurance. Karen C., who practices law in Phoenix, Arizona, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Karen C. is held by other top lawyers in the same geographic and legal practice area.
Greg Davis is a top attorney recognized by Best Lawyers in the practice area(s) of Collaborative Law: Family Law and Family Law. Greg, who practices law in Phoenix, Arizona, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Greg is held by other top lawyers in the same geographic and legal practice area.
Ira M. Schwartz is a top attorney recognized by Best Lawyers in the practice area(s) of Copyright Law, Information Technology Law and Litigation - Intellectual Property. Ira M., who practices law in Phoenix, Arizona, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ira M. is held by other top lawyers in the same geographic and legal practice area.
Kelsi T. Lane’s practice focuses on probate administration, trust administration, and estate planning. Kelsi is a dedicated attorney practicing estate law. She is focused on ensuring her clients’ legal needs are met with promptness and efficiency. Kelsi is recognized for her expertise by The Best Lawyers in America ©, 2024 and 2025 editions, Super Lawyers ®, 2022, 2023, and 2024 editions, and featured in Phoenix Magazine ’s Top Lawyers in Wills, Trusts, & Estate...
Keith Hendricks is a trial attorney with 30 years of experience representing businesses and individuals in commercial disputes. His practice is focused in the areas of real estate and business litigation. Keith also has significant experience in bankruptcy litigation, water law disputes, collections, governmental procurement, administrative law disputes, construction litigation, and restrictive covenant litigation. Keith is a former partner with the law firm Fennemore Craig PC where he practi...
P. Derek Petersen is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Environmental. P. Derek, who practices law in Phoenix, Arizona, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which P. Derek is held by other top lawyers in the same geographic and legal practice area.
Les Raatz is an attorney practicing primarily in the areas of estate planning, probate and trust administration, entity structuring, taxation, charitable organizations, commercial organizations, and commercial transactions. Mr. Raatz has significant experience representing hundreds of business clients and their families in connection with estate and tax planning. He has been an author and speaker at numerous seminars on areas of income and estate and gift taxation, selection of business entit...
Explore and Learn
2026 Best Lawyers Awards: Recognizing Legal Talent Across the United States
by Jamilla Tabbara
The 2026 editions highlight the top 5% of U.S. attorneys, showcase emerging practice areas and reveal trends shaping the nation’s legal profession.
Gun Rights for Convicted Felons? The DOJ Says It's Time.
by Bryan Driscoll
It's more than an administrative reopening of a long-dormant issue; it's a test of how the law reconciles the right to bear arms with protecting the public.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Build Your Legal Practice with Effective Online Networking
by Jamilla Tabbara
How thoughtful online networking supports sustained legal practice growth.
Blogging for Law Firms: Turning Content into Client Connections
by Jamilla Tabbara
How law firms use blogs to earn trust and win clients.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
How to Choose a Good Lawyer: Tips, Traits and Questions to Ask
by Laurie Villanueva
A Practical Guide for Your First-Time Hiring a Lawyer