Jamie Sieffert

Overview

Jamie Sieffert is a Principal in Ryan’s Plano office, where he specializes in providing commercial real estate property tax services, including valuation and reporting for both real and personal property assets. His work focuses heavily on multifamily properties in the Dallas/Fort Worth area, and he advises clients on property tax matters across the South-Central United States with an emphasis on defensible valuations and consistent results.

With deep experience in commercial property tax consulting, Jamie brings a disciplined, data-driven approach to valuation, appeals, and reporting. His background includes leading multifamily appeals in major Texas jurisdictions and managing large, multistate engagements for national clients. Jamie is known for delivering practical guidance and helping property owners navigate complex assessment environments with clarity and confidence.

Education and Qualifications

Master of Real Estate, Texas A&M University

Bachelor of Science, Animal Science, Texas A&M University

Certified Commercial Investment Member (CCIM)

Senior Property Tax Consultant, Licensed in Texas

Experience and Achievements

Principal, Property Tax, Ryan, Plano office

• Advises clients on commercial real estate valuation, reporting, and appeals

• Handles multifamily property tax appeals across the South-Central United States

Director, Commercial Property Tax, Ryan, Dallas office

Director, Commercial Real Estate, national accounting firm

• Led multifamily appeals in Dallas and Collin counties

• Managed national engagements and directed the Dallas County team

Senior Manager, Property Tax, national accounting firm

Manager, Property Tax, national accounting firm

Senior Consultant, Property Tax, national accounting firm

Consultant, Property Tax, national accounting firm

Analyst, regional apartment brokerage

Member, Apartment Association of Greater Dallas

Designee, Certified Commercial Investment Member (CCIM) Institute

Member, North Texas Association of Assessing Officers

Member, Texas Association of Property Tax Professionals

Former Board Member, Society of Texas A&M Real Estate Professionals