William D. Pettit

Unico Properties, Inc. provides real estate investment services. The firm's services include asset management, development and redevelopment, acquisition and disposition, management and leasing, construction management, marketing, and accounting & finance. It owns and manages commercial space in Boise, San Francisco, Denver, Tacoma, and Portland. The company was founded by Roger L. Stevens in 1953 and is headquartered in Seattle, WA.

R.D. Merrill Co. engages in the owning and operation of senior housing communities. The company was founded by Richard Dwight Merrill in 1993 and is headquartered in Seattle, WA.

Pillar Properties LLC engages in the development, management, and owning of apartment buildings. It focuses on the operation of multifamily and senior housing properties. The company was founded by Richard Dwight Merrill and is headquartered in Seattle, WA.

American Seniors Housing Association operates as a business association for senior housing providers. It operates as a source for research, conferences and advocacy. The company was founded by Lawrence A. Cohen in 1991 and is headquartered in Washington, DC.