About Us

Mr. A Patrick Sheahan, Designated Broker

The company represents regional and national retail, office and industrial tenants as an Exclusive Tenant Representative in their Multi-Location Real Estate Activities. As an example, we represented H & R Block in well over 200 lease transactions in Arizona during a 20 year period. We also represent clients as an Exclusive Buyer Representative in the acquisition of retail, office, industrial and income-producing properties


Mr. A. Patrick Sheahan has over thirty years experience in the commercial real estate and mortgage banking fields. Mr. Sheahan has been a licensed Arizona Real Estate Broker since 1992 and owns and is the Designated Broker for Berry & Doyle, LLC.
Mr. Sheahan is approved by the Arizona Department of Real Estate as both an Instructor and a Real Estate School Owner. Commercial Real Estate Seminars (www.creseminars.com) was founded in 2003 and he has been an approved Instructor for over ten years. Commercial Real Estate Seminars provides commercial real estate continuing education courses and Mr. Sheahan is approved to instruct over 30 commercial real estate courses and has taught courses and seminars in Phoenix, Tucson and Las Vegas.

  • Arizona Real Estate Educators Association (AZREEA)

  • Past President & Past Board Member
    Certified Seminar Leader (CSL)

Mr. Sheahan's Additional Real Estate Education Activities

Serve on Committees

Has served on a number of Workgroups and Stakeholder Committees at the Arizona Department of Real Estate over the past ten years and was a Member of the ADRE Education Advisory Committee for a two-year term.

Expert Witness Work

Provides consulting and testifying expert witness services (www.creexpertwitness.com) in support of litigation related to commercial real estate matters. Areas of expertise include the following issues: Arizona Revised Statutes pertaining to real estate, ADRE Commissioner’s Rules, NAR Code of Ethics, Broker/Salesperson Standard of Care, Agency, Contract Law, Disclosure, Licensee fiduciary obligations, commercial real estate contracts, commercial leases and other related matters.

Create Legislation

Assisted in the drafting, lobbying and passage of real estate educated-oriented legislation at the request of the currrent ADRE Commissioner and the past two Commissioners of the Arizona Department of Real Estate