From West Texas. For West Texas.

Bryan DeWees Mackay at-a-glance:

  • BA, University of Texas at Austin, 2010

  • JD, cum laude, Texas Tech University School of Law, 2013

  • Licensed to practice law in Texas 2013

  • Licensed to practice law in New Mexico 2014

  • Admitted to practice in the U.S. District Court for the Western District of Texas

  • Admitted to practice in the U.S. Fifth Circuit Court of Appeals

  • Admitted to practice in the U.S. Tax Court

Bryan is an attorney licensed to practice law in Texas (2013) and New Mexico (2014). Bryan focuses his practice on business and commercial transactions, commercial and residential real estate, probate, wills and trusts, entity formation/management, evictions, foreclosures, and general oil and gas law. Bryan also has experience in commercial litigation/collections and advises clients in a wide variety of ongoing business and contractual matters.

Bryan earned his Bachelor of Arts from the University of Texas at Austin in 2010. While at the University of Texas, Bryan played on the Texas Men’s Water Polo team and was a member of Delta Tau Delta Fraternity. After that, Bryan graduated cum laude from the Texas Tech University School of Law in 2013. While in law school, Bryan was an officer of the Estate Planning & Community Property Law Journal and was a member of the Board of Barristers.

Bryan has been licensed to practice in Texas since November of 2013. Bryan was sworn in by the Supreme Court of New Mexico and licensed to practice law in the state courts of New Mexico in 2014. He brings ten years of experience practicing law as an associate and partner at two well established law firms in Odessa, Texas, where he represented and advised clients in a variety of legal matters including business formation, asset/stock purchase and sale transactions, commercial litigation, commercial and residential real estate, oil and gas transactions for landowners and operators, oil and gas related collections and litigation, wills, probate, estate administration, estate planning, and federal and state tax audits of businesses and individuals.

Bryan grew up in Midland, Texas and comes from a proud West Texas family. Bryan was a graduate of Midland Legacy High School and played cello in the symphony, StrictLee Strings, and was on the swim team. He is a strong believer in serving and giving back to his local community. Bryan was a member of Young Professionals of Odessa, a program of the Odessa Chamber of Commerce, and is a former member of the Board of Directors. He served as the Board Chairman in 2017 and Treasurer in 2018, spearheading the establishment of the annual Odessa Under 40 awards. Bryan is a member of the 2019 Odessa Under 40 class after nomination by his peers and selection by an esteemed panel of judges from the Odessa, Texas community. He has also been the Chairman of Young Professionals of Odessa’s Service Committee, as well as the Fundraising Committee. Mackay Law Firm, PLLC is currently a member of the Midland Chamber of Commerce and Bryan is a member of the Midland County Bar Association.

Bryan’s commitment to service extended beyond Young Professionals. His resume includes service as a Catholic Charities of Odessa Board Member (2015-2016), the Ector County Bar Association President (2016-2017) and Treasurer (2015-2016), Ector County Service to the Bar Award winner for 2015-2016, United Way Legal Committee Chair for 2016 and 2017, and former Ector County Young Lawyers President and Treasurer. Bryan also served on the state-wide board of the Texas Young Lawyers Association for District 17 (an elected position) where he was awarded the TYLA President’s Award of Merit for 2015-2016.

Our Office Manager/Legal Assistant - Mrs. Eyra A. Arsiaga

Mrs. Eyra A. Arsiaga joined Mackay Law Firm, PLLC as the firm’s Office Manager and Legal Assistant in March of 2025. She brings many years of administrative experience in various positions to the firm and helps to ensure that the day-to-day operations of the firm go smoothly. She assists Mr. Mackay with drafting court pleadings and other legal documents, fielding phone calls, coordinating with courts, and a whole host of other activities.

Mrs. Arsiaga speaks Spanish fluently and provides translation services for the firm’s Spanish speaking clients. This skill is invaluable to our law firm and helps us to further assist our client’s efficiently and effectively.

Mrs. Arsiaga lives in Greenwood, Texas with her husband and children.