Contact Us

Berkey & Kooistra
10526 Northeast 68th Street, Suite 200
Lakeview Center, Building A
Kirkland, WA 98033

Telephone: 425-658-5283
Fax: 425-803-3023
Kirkland Law Office Map

Mary E. Kooistra

Mary E. Kooistra

Kirkland, Washington

Mary Kooistra has lived in Kirkland for over 32 years. She was a Little League softball coach with a championship team. She is active in the Community Supper program run by Attain Housing. Her clients appreciate her calm and reassuring manner. As one client wrote, "I was still in shock when I first saw you. I am happy to say that I am no longer in a state of shock. The visit with you in your office seemed to put me on an even keel - the surroundings in your office were calming; you treated me with calmness! Therefore, I have been able to get my papers and mindset in order."

Areas of Practice

  • 25% Adoption
  • 35% Estate Planning
  • 30% Probate
  • 5% Guardianships
  • 5% Other

Bar Admissions

  • Washington, 1977
  • U.S. District Court Western District of Washington, 1977


  • University of Washington School of Law, Seattle, Washington
    • J.D. - 1977
    • Honors: Order of the Coif
  • Linfield College, McMinnville, Oregon
    • B.A. summa cum laude - 1974
    • Major: History

Professional Associations and Memberships

  • National Association of Elder Law Attorneys (NAELA)
  • Washington Chapter of NAELA, Board of Directors