Sonora, CA
Modesto, CA

David L. Gianelli

I became an attorney because of the challenges the study of law posed. I felt that as a lawyer, I could make a difference in people's lives and in the community.

David L. Gianelli


Dave Gianelli is a Shareholder at Gianelli Nielsen. He has 28 years of experience in business and estate planning, succession planning for businesses, business formation, corporate maintenance, probate and trust administration, and taxation. He is a certified specialist in Estate Planning, Trust and Probate law and has an advanced masters degree (LLM) in taxation.  Dave enjoys working with businesses and assisting businesses with the legal issues they face.  He also enjoys working with families to help them through transitions in ownership and management.

David received his Bachelor’s of Arts in economics from the University of California at San Diego in 1982. He received his Juris Doctorate at the University of the Pacific, McGeorge School of Law in 1985 and his Masters Degree in Taxation (LLM) in 1986. His honors include the Am Jur Award for Estate Planning and the Student Award for Excellence in Taxation.  David has written a number of professional articles on business and estate planning.

David is currently an active member of the Modesto Rotary Club and is the current Chairperson of the Modesto Chamber of Commerce as well as the Chamber's Government Relations Committee. He is a former Chairperson of the Boys & Girls Clubs of Stanislaus County and the Education Foundation of Stanislaus County. He is on the steering committee to start a Boys & Girls club in Modesto. Dave is a former Chair of the Citizens Advisory Committee for the Tuolumne River Regional Park, and former President of the Stanislaus County Alzheimer’s Disease and Related Disorders Organization.

When Dave is not at the office, he can be found at various activities of his four children, playing tennis, coaching soccer, climbing indoor walls, riding his bike or working in his yard.

Non-Profit Organizations David L. Gianelli is involved with:

David L. GianelliModesto Chamber of Commerce
Voting is one of the greatest privileges and also one of the greatest responsibilities we have in this country.

David L. GianelliModesto Rotary Club
Since our founding in 1920, Modesto Rotary Club has been committed to improving the world, on a local and global level.

David L. GianelliEducation Foundation of Stanislaus County
The Mission of the Education Foundation of Stanislaus County is to link businesses, individuals, and civic organizations with public schools to support student programs which enhance self-esteem, achieve academic excellence, promote teamwork and good citizenship, and increase community support for public education.

David L. GianelliBoys and Girls Club of Stanislaus County
Partnering with government, schools, and non-profit agencies to help achieve our common goal: giving all our children the opportunity to become productive, responsible, and caring citizens.

Based in Modesto, CA with a location in Sonora, CA, Gianelli Nielsen, PLC serves clients throughout California.

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