Theresa Nielson

Theresa Nielson serves as the Managing Broker for the Montgomery County, MD offices of TTR Sotheby’s International Realty. Licensed in MD, D.C. and VA, Theresa began her career in marketing at a boutique architecture and development firm before shifting to real estate in 2003. Since then, the offices she has led have consistently ranked among the top-performing in the region. 

A native Washingtonian, Theresa loves traveling with her family and their two dogs. She is committed to the community she serves and supports a variety of non-profit organizations. Currently, Theresa serves on the Board of Glen Echo Park, as well as Transformer, a visual arts organization that supports emerging artists and art leaders in the D.C. area. 

Theresa is also actively involved with the Greater Capital Area Association of REALTORS® (GCAAR), where she supports initiatives that advance professional development, ethical standards and advocacy for the real estate community. Her commitment to elevating the profession aligns with her passion for mentoring the next generation of real estate professionals and promoting excellence across every facet of the industry.