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Practice Area Focus
  • Bankruptcy
  • Business Law
  • Civil & Commercial Litigation
  • Criminal Law & DUI
  • Cross Border Transactions & NAFTA
  • Divorce & Family Law
  • Employment Law
  • Immigration & International Law
  • Intellectual Property
  • Investment Law in US & Mexico
  • International Estate Planning
  • Probate, Conservatorship & Guardianship
  • Real Estate Law in AZ & Mexico
  • Self-Directed Retirement Investment Law
  • Wills, Trusts & Estates


The Preventative Legal
Services Plan for
Arizona Professional Educators

With Preventia, legal advice is just a phone call or e-mail away. Thus, you can prevent legal questions from becoming legal problems. For a small monthly retainer, you get the security and protection you deserve from a prestigious law firm with experienced attorneys that will assist you with a wide array of legal matters.

About Us

The Law Offices of Mark A. Winsor, PLC, located in Mesa, Arizona, is a solutions-oriented law firm that understands the needs of both individuals and businesses.

Our attorneys are able to provide a wide range of legal services to businesses and individuals. Through a network of outside attorneys who work with our clients when needed we provide both the resources of a large firm and the close client service of a small neighborhood firm. We also help companies who have inter-state or international needs with attorneys licensed to practice in Arizona, Illinois and Mexico and a network of attorneys licensed in many other jurisdictions.

Serving Businesses

We understand the challenges a business faces in today's competitive environment. The road to success has obstacles and detours. The business transaction and litigation lawyers at Law Offices of Mark A. Winsor, PLC, have both a depth of knowledge and a diversity of experience to guide business owners and leaders around those obstacles and detours. Our lawyers have complementary experience and backgrounds, enabling the firm to assist companies with every aspect of their legal needs. Anything beyond our areas of expertise are handled by competent outside attorneys and firms who work closely with us in serving our clients.

Some of our attorneys have background in international law or international affairs. We believe that the strong international component of the firm serves our clients well, given the current world trend toward globalization.

Serving Individuals

Law Offices of Mark A. Winsor, PLC serves a wide range of legal needs for people throughout Arizona. We have estate planning attorneys experienced at counseling clients about trusts, wills, and health care directives (a.k.a. living wills). We have the resources to help you in family law matters, including divorce and child support issues. Some of the areas our attorneys can help you in include:

  • Tax Free and Tax Deferred Protection for your real estate and other investments
  • Family Law
  • Wills, Trusts and Estates
  • Probate, Conservatorship and Guardianship
  • Immigration and International Law
  • Criminal Law
  • Real Estate Law in Arizona and Mexico
  • Employment Law
  • Bankruptcy
  • Tax Law

We look forward to meeting with you in the near future to discuss your legal needs. Instead of telling you what can't be done, we will work to find solutions to your problems.

Quality Service to All Clients

At Law Offices of Mark A. Winsor, PLC, providing quality service to clients is both our hallmark and standard of measurement. That standard is not based on prestige or the size of legal fees, but rather by how we are viewed through the eyes of those we represent.

Power in Diversity

Law Offices of Mark A. Winsor, PLC is committed to building a practice that is truly reflective of the diverse populations they serve, including women and minorities, both of whom have traditionally been under-represented and under-served. The firm has attorneys and staff members fluent in a number of different languages, including:

  • Spanish
  • Norwegian
  • German
  • French

We have provided a number of pages for Spanish-speakers on this site; please visit our main Español page.

Contact Us

Please contact Law Offices of Mark A. Winsor, PLC with any questions you have about the firm. Call the firm at 480-505-7044 or send an email to admin@winsorlaw.com to arrange for a confidential consultation to discuss your business or personal legal needs.