Don is a retired Colonel of the Judge Adjutant General Corp and the US Army. His military and reserve career spans 39 years, and has included both enlisted and officer status. His legal career includes admittance to practice law in the Commonwealth of Massachusetts in 1974, admittance to practice law in US District Court in 1975, admittance to practice law in the US Tax Court in 1987, admittance to practice law in the US Court of Military Appeals in 1991, and finally admittance to practice law in the Mashpee Wampanoag Tribal Court in 2011.

Don also serves on multiple community committees, and was elected as one of our Board of Directors in April, 2016.