Who We Are

Luke is both a licensed attorney and a Certified Public Accountant, giving clients the rare benefit of integrated tax and legal counsel under one roof. He began his career at a Big 4 accounting firm preparing and advising on Fortune 500 company tax returns. He then went on to practice law at large firms representing clients as they sold their businesses, often to large private equity buyers. Experience at such a high level prepares him to assist clients of all sizes. Outside the office, Luke enjoys spending time with his wife and three little boys, serving the community, and riding horses in the mountains of eastern Arizona.

Michael is a seasoned tax pro with deep experience preparing returns and advising clients on practical tax strategy. He brings a steady, detail-oriented approach to even the most complex filings. Michael also runs a bookkeeping practice that helps clients keep all of their accounting in order, giving them a clean, reliable foundation for tax season and year-round decision making.

Tatum graduated from BYU–Hawaii with a degree in accounting and has since built meaningful experience at Porter Mountain Advisors preparing returns and supporting clients through tax planning . She is actively pursuing her CPA license. Before joining PMA, she tutored fellow accounting students, served as an auditing director for a small community group, and interned with one of the largest non-profit organizations in the world. Outside of work, Tatum enjoys laying out on the beach, staying active, and annoying her new husband.

Diane is often the first friendly voice clients hear and the steady hand keeping every engagement on track. She coordinates intake, document collection, and scheduling across both offices, ensuring nothing falls through the cracks. Beyond her office work, Diane also assists with tax preparation and estate planning engagements—truly the "Swiss Army knife" of the office, ready to step in wherever clients need support.