Jonn Mason

Jonn Mason is President and Founder of Thornewood Advisors USA and 1st Financial USA

Jonn is a lifelong resident of Washington and has been in the financial services industry for over 48 years. Jonn’s career in the financial services industry began while he attended junior high school with after-school and summer employment at the second largest bank in Washington, The National Bank of Commerce which later became Rainier Bank. Years later Jonn left the corporate world to start his own Fiduciary Advisory, securities firm, and an insurance firm. (To see a complete bio go to
Jonn utilizes his many years of experience to educate Washington residents on ways to protect their assets, reduce taxes, and provide more income over their lifetime. He also teaches financial classes for various corporations and professional groups, local colleges, continuing education classes for CPAs, as well as for national nonprofits promoting financial awareness.
Jonn is someone who appreciates life and desires to give back to his community. He is an active supporter of several charitable organizations throughout the area including World Vision, Make A Wish Foundation, St Jude Children’s Research Hospital, Adorned in Grace, Operation Underground Railroad and Hope International.
Jonn is extremely proud to be a U.S. Army Veteran and the time he spent serving his country. In his spare time, he enjoys spending time gardening, mountain sports such as hiking, climbing, skiing, and is an avid antique collector.


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