- David has counseled literally thousands of people over 41 years
- David now exclusively functions as an Expert Witness in Collaborative Law divorce cases
- City of Peoria, AZ
- City of Scottsdale, AZ
- City of Paradise Valley, AZ
- City of Bellevue, WA
- City of Kirkland, WA
- City of Seattle, WA
- City of Bothell, WA
- City of Edmonds, WA
- Department of Ecology, WA
- Insurance Commissioner’s Office of WA
- State Department of Transportation, WA
- Department of Natural Resources, WA
- Region X, EPA, Seattle, WA
- Renton School District
- Kent School District
- Bellevue School District
- Centralia School District
- Tacoma School District
- Highline Community College
- Pasco School District
- Snohomish County PUD
- Port of Tacoma, WA
- Port of Seattle, WA
- Port of Everett, WA
- Floyd & Snider
- Hart Crowser
- GeoEngineers
- Parametrix Environmental Services
- Confluence Environmental
- Cascadia Consulting Group
- Sustainable Northwest
- Ryther Child Center
- Family Services of King County
- Seattle Children’s Home Society
- Compass Housing
- National Bureau of Asian Research
- Global Health Innovative Technology Fund
- Seattle Chamber of Commerce
- American Society of Foresters
- Associated General Contractors
- Seattle Biomedical Research Institute
- University of Washington Medical School
- Heldridge Weaver & Sato Oral Surgeons
- Eastside Oral Surgery Clinic
- Kitsap County OMS
- Spencer Technologies
- Arizona State University Biomedical Research
- Absker Construction
- AECON
- Lease Crutcher & Lewis
- Mountain States Construction
- Swinterton Builders
- Adler Giersch
- Ahrens & West, PLLC
- Betts Patterson & Mines
- Lane Powell Spears and Lubersky
- Lasher Holzapfel Sperry & Ebberson
- Perkins Coie
- Read, Longyear, Malnati Schroeter Goldmark & Bender
- Stafford Frey Cooper
- Stokes Lawerence
- Strittmater Kessler
- Seattle Northwest Securities Corporation
- Bank of America
- Federal Home Loan
- Blue Cross
- Frank Russell Company
- KPMG
- Weyerhaeuser Corp
- Amazon.com
- Microsoft
- Jones Lange LaSalle
- Pyramid Communications
- Grubb & Ellis
- Metropolitan Building Maintenance
- Nabisco Brands
- North Star Ice Equipment Company
- Eddie Bauer
- SeaPac Sales
- QPass
- Lake Partners
- University of Puget Sound
- House Values, Inc.