Our experience and leadership in real estate investment opportunities is held by an exceptional pride of
ownership and a commitment to excellence.

By developing properties, we are building communities to thrive. Success to us means that our developments are flexible and equitable at the local level. We work to respond to the changing needs of the market with agility and intention. We believe in collaboration and bringing the best people, energy, and technology to every project.

Meet Our Team

Anything is possible with extraordinary people. 

From the leadership to the newest recruit, we pride ourselves on creating an environment of mentorship and individual growth. We work diligently to learn from each other and to create opportunities for our teammates to surprise themselves by their accomplishments. We have two rules: have fun and the best idea wins.

We're Hiring!

Click a role below to view the position description and instructions on how to apply.

Marketing Manager
Senior Development Manager
Development Manager
Site Operations (Superintendent)


Dennis Rattie

Dennis Rattie oversees the operational management and vision for the company. He works closely with each director to ensure the success of each department individually and as a whole. Since joining Tarragon in 2000, he has served in a variety of management roles. Dennis continues to stay actively involved in Tarragon’s development, finance, construction, leasing and property management teams to ensure overall project and company success.

Dennis earned his bachelor's in Construction Management from the University of Washington. He is an active member and supporter of NAIOP, International Council of Shopping Centers (ICSC), Urban Land Institute (ULI), Commercial Real Estate Women (CREW), and the Downtown Seattle Association. Dennis is very active in a variety of youth sports programs, including Eastside Select Baseball (Board Member) and Liberty Select Basketball (Coach), and also enjoys playing golf and skiing in his spare time.


Tina Pappas
Senior Director of Real Estate Operations

Tina Pappas provides leadership and operational support to the leasing, marketing, and accounting teams, ensuring the departments’ objectives are being met and their processes are strategically streamlined.

Tina holds a bachelor‘s degree in Communications from Western Washington University. She has over 20 years of real estate experience, previously working at Bill + Melinda Gates Investments and was the President at Egis Real Estate Services. She is highly active in NAIOP and CREW and within various local organizations focused on enhancing communities.

Tina's Favorite Book
The Giving Tree


Teresa Buxton

Teresa Buxton oversees accounting and support staff for Tarragon’s Development Team. Teresa works closely with the key stakeholders ensuring compliance and identifying potential risks or opportunities at a strategic level. In this versatile role, she partners with our investment and property management partners to ensure projects are properly capitalized and smoothly transitioned to operations.

Prior to Tarragon, Teresa worked for a local heavy civil contractor, where she supervised accounting and support staff, managing annual revenues peaking near $100M and weekly payrolls of up to 300 union workers.

Teresa graduated from the University of Washington with a degree in accounting. A native north westerner, she enjoys trail running, biking, cross-country skiing, traveling, and reading when she isn’t in the office.

Teresa’s Dream Job
Bike Messenger


Dave Henline
director of construction

Dave Henline oversees the site operations and the execution of suburban land development and multi-family projects throughout Tarragon’s portfolio. Dave collaborates closely with the Development Team and key consultants through the concept, acquisition, and entitlement stages of projects. He prepares construction budgets and cost analysis, and provides unique insight into the constructability review and value engineering process.

Dave joined Tarragon in 2006 and contributes over 35 years of construction industry experience to the development team. He has extensive site development expertise and has constructed thousands of multi-family and residential units in both high-rise urban and suburban environments. Dave also has significant experience developing office, medical and retail projects. Dave is a graduate from the University of Washington in Construction Management and can be found most weekends skiing in the cascades or contributing time to local community events.

Dave’s Dream Job
Director of lift operations on any ski hill in the states.


Mandy Bender
Contracts Manager

Mandy Bender oversees Tarragon’s contracts department, and is primarily responsible for coordinating all activities relating to legal agreements for the company. In addition, Mandy provides legal advice, interpretation and guidance to all levels of the organization regarding contractual, and other corporate, commercial and business matters.

Prior to Tarragon, Mandy spent five years at the University of Washington as the Contracts Administrator for the Capital Projects Office and four years at Starbucks Coffee Company as a Real Estate Project Manager and Leasing Analyst.

Mandy holds a bachelor’s degree from the University of Washington and a Juris Doctor from Seattle University School of Law. Mandy is a member of the Construction Law Section of the Washington State Bar Association.

Mandy is a major sports junkie, regularly rooting on the Huskies, Mariners and Seahawks. As a native Seattleite, Mandy enjoys trying out local breweries and restaurants, and spending time with friends and family in the beautiful Pacific Northwest.

Mandy's Dream Job
Collegiate Football Coach


Tim Hamann
Senior Development Manager

Tim Hamann brings over fifteen years of real estate development experience to the team, providing leadership support to the strategic development of Tarragon’s retail properties.

Tim previously worked at Kimco Realty where he was the Director of Construction, providing strategic development, leasing, and construction direction.

Tim holds a bachelor’s degree in Design from the University of West Florida and a Certificate of Commercial Real Estate Development from the University of Washington.

Tim’s Favorite Sport


Meet the Team

Aegir Olsen
Development Associate
Bea Magno
Development Accountant
Ben Waiss
Development Manager
Brenda Montgomerie
Development Analyst
Danielle McIntyre
Executive Assistant
Dave Carter
Construction Manager
Dave Uhron
Site Operations
Drew Davis
Transaction Manager
Gayle Kawaguchi
Accounting Assistant
Larry Lambert
Construction Manager
Lou Robinson
Construction Coordinator
Marcos Jasso
Property Maintenance Manager
Mark Steed
Site Operations
Marta Grzankowski
Administrative Assistant
Matt Farrell
Development Associate
Mitch Haugen
Site Operations
Molly Peterson
Front Desk Coordinator
Robert Schwindt
Project Manager
Seth Warren
Senior Development Accountant
Tim Werfelmann
Project Engineer
Yeorgia Anastasiou
Development Associate

 Who We Work For

We are focused on creating innovative projects for our partners, the community and the end users.

In doing so, we are consistently humbled by some of the fantastic groups we have the opportunity to work with, from global companies to local leaders. We love to help cultivate the vision and work tirelessly to make that objective a reality.

Community Involvement

When our communities thrive, we all benefit.

It's easy to lose track of how lucky we are to live where we live and have what we have. Grounded in our Northwestern roots, we are focused on making our environment and communities stronger. This means we invest to preserve what we value for the next generation and we support the evolution of great ideas and great people. We just know it feels right.