Mike Hess and Joanna Callahan formed Hess Callahan Partners in 2016, after many successful years at First Western Development Services.   The company's aim is to develop a portfolio of financially successful, architecturally distinct, and environmentally sustainable properties in Seattle’s urban core with a focus on redevelopment and new construction

Through Hess Callahan's partnership with CoU LLC, it has received many accolades from winning NAIOP's 2017 Washington Office Building of the Year to being awarded "Hero of the Salmon" for its Salmon safe certified projects in Seattle.

Mike has over 35 years of experience in the development industry. He studied Economics at the University of Washington. In 1979, he started his career at Walter E Heller and Co. where he worked on financing commercial real estate projects from 1979-1981. In 1981, Mike joined First Western Development. Since 1981, Mike has been a partner at First Western Development and its current incarnation as First Western Development Services where he continues some involvement in that portfolio. At Hess Callahan Partners, Mike is involved in all aspects of development for new projects. Mike’s special areas of expertise are proforma analysis, project financing, and oversight of design. 

Before Hess Callahan Partners, Joanna was an integral part of First Western Development Services where she was in-house Legal Counsel.  Beyond her legal duties, Joanna worked closely with Mike in his development projects with a focus on lease review, project financing, and closing of sales and acquisitions. Joanna has transitioned from a legal role to one more focused on development.  At Hess Callahan Partners, Joanna is primarily responsible for lease and legal review, financial analysis, and consultant coordination. Joanna holds a B.A. from Yale, a Master of Science from the London School of Economics, and a law degree from the University of Washington. Joanna was recently honored in the Summer of 2019 with Puget Sound Business Journal Commercial Real Estate Leadership Award of “Up and Coming Developer”.