About Tresco

 Established in 2002, Tresco of Idaho is a professional independent fiduciary of Conservatorships and Estate administration.

Our experienced staff represents over one hundred years of banking and trust administration.



Position: Chairman Of The Board
Location: Boise, Idaho

A. Wesley Seideman founded Tresco of Idaho in 2002, to fill a need in the community for a professional fiduciary serving the people of Southwest Idaho.  Mr. Seideman served as president until January of 2013 when he was elected chairman of Tresco of Idaho.

Mr. Seideman attended Whitworth College and graduated in 1965 with a BA in History and minor in Math.  Mr. Seideman worked for Old National Bank for 10 years where he worked in retail banking, trust operations, tax preparer for estates, trusts, probate, conservatorships and administrator/officer of the bank.  Mr. Seideman continued his career by joining Idaho First National Bank/US Bank.  Mr. Seideman was with Idaho First National Bank/US Bank for 22 years where he developed an excellent business for Probate and Conservatorships.  Mr. Seideman was Vice President and supervised probate and conservatorship administration thru out the State of Idaho.
Mr. Seideman lives in the Boise area with his wife of 50 years Kathie.  They have four adult children and 12 grandchildren.

Mr. Seideman serves the community in the following capacities:

•    Member of Trust and Estate        Professionals of Idaho
•    Member of Idaho Guardianship and Fiduciary Association and National Guardianship Association
•    Former member of Planned Giving Advisory Board for Idaho Youth Ranch and still serves as a consultant to the Ranch
•    Respected workshop speaker for many conferences concerning guardianship, conservatorship, probate and aging
•    Consulted for many local attorneys seeking assistance for complex fiduciary administrative matters

Tresco of Idaho is a professional fiduciary company serving the people of Southwest Idaho.  Tresco accepts court appointments for Conservatorships and Estate fiduciary company Administration, in addition to serving as agent for individual and corporate administrators.

Tresco currently has a staff of 10 employees who have more than 125 years of experience in fiduciary account administration, real estate management, and court approved accounting. Tresco has over $29 million in assets under management.

Tresco’s mission is to provide ethical fiduciary solutions for families in our community.


Position: Chief Financial Officer
Location: Boise, Idaho

Paul Seideman joined Tresco of Idaho as the Chief Financial Officer in 2008.  Mr. Seideman has worked for Tresco in the capacity overseeing internal business processes and human resource policy/procedure for the company.  Mr. Seideman has also administered probate, conservatorship and trust accounts for the past 6 years.

Prior to joining Tresco Mr. Seideman worked in the financial industry for 14 years, primarily as a branch manager for Washington Mutual Bank.
Mr. Seideman graduated from George Fox University in Newberg, Oregon in 1992.   Mr. Seideman has been a National Certified Guardian through the Center for Guardianship Certification since 2010. Mr. Seideman has presented several continuing education seminars on the topic of probate administration with National Business Institute as well as speaking at groups such the Justice Alliance for Vulnerable Adults, Southwest Idaho Estate Planning Council, Idaho Planned Giving Council, Idaho Association of Retired Teachers, and the Association of Certified Fraud Examiners.  Mr. Seideman lives in the Boise area with his wife of 20 years Nissa and their four children.

Mr. Seideman serves the community in the following capacities:

•    Idaho Guardian and Fiduciary Association  President  2011-2013
•    National Guardianship Association committee member
•    Ada County Elder Abuse Community Coordinated Response Team
•    Leader of Bible Study Fellowship in Boise
•    Music Leader at his church, The Journey.