top of page
The Team

Meriwether Advisors LLC's two main principals, David Rothrock and Doug Barrett are corporate and commercial real estate veterans with combined experience of over 55 years.

David C. Rothrock, SIOR, CCIM



David co-founded Meriwether Advisors in 2013. Previously, David co-founded Meriwether Partners in 2002 where he served as the Managing Director of the firm’s brokerage and advisory division for eleven years. With over 23 years of corporate real estate and site selection experience, he has specialized in representing corporate clients in their tenant representation and site selection needs. David has represented his clients in over 625 transactions and strategic advisory assignments involving over 6 million square feet and $3.5 billion in assets in the Pacific Northwest, nationally and internationally.

Prior to Joining Meriwether Partners, David spent ten years as Senior Vice President at Colliers International, a Seattle based commercial real estate services firm, where he led the Corporate Services team as a single point of contact for many notable companies including Microsoft and Attachmate corporations. David earned his Bachelor of Arts degree cum laude from Seattle University and is a SIOR and CCIM designee. David is a graduate of Leadership Spokane and Leadership Bellevue. David, his wife Kirsten and their four children live in Seattle, Washington. | 206.816.1572

Douglas O. Barrett, CCIM, JD


Doug co-founded Meriwether Advisors in 2013 bringing over 18 years of commercial real estate experience to the company. Before joining Meriwether Advisors, in 2000 Doug co-founded ATREG, Inc., an advisory firm specializing in the semiconductor and advanced technology sectors. During his tenure at ATREG from 2000 to 2013, Doug represented clients in over 35 transactions and strategic advisory / consulting assignments involving millions of square feet and $3.5 billion in assets in the United States, Europe and Asia.

Prior to co-founding ATREG, Doug was a Senior Vice President and Director of Corporate Services for the Seattle based commercial real estate firm, Colliers International. He is a two-time recipient of the Colliers International President’s Award for outstanding client service. Doug graduated cum laude with a Distinction in Economics from Colorado College and is a CCIM designee. A licensed attorney, Doug earned his Juris Doctor degree from the University of Washington School of Law. Doug, his wife Laurie and their three children live in Issaquah, Washington. | 206.816.1579

Matthew G. Brennan


Matt joined Meriwether Advisors as an Analyst in June of 2018. After earning his Washington Real Estate License, Matt joined the Meriwether team as a full-time Associate in January of 2019.


Prior to joining the Meriwether team, Matt was a full-time student at Gonzaga University in Spokane, Washington. Matt graduated from Gonzaga with a degree from the School of Business in Finance and Marketing.


Matt was born and raised in Seattle, Washington attending St. Joseph’s and Seattle Preparatory School both located in the Capitol Hill neighborhood. Other than his tenure at Gonzaga, Matt has lived in Seattle his entire life and has watched the city change and grow into the thriving city it is today. | 206.459.0782

Please reload

bottom of page