Tyson Arbuthnot
David E. Aron
Gayle M. Athanacio
Stephen L. Bacon
Merri A. Baldwin
Robert J. Breakstone
Dennis J. Callahan
Thomas H. Carlson
Jeffery M. Chiow
Alecia E. Cotton
Joshua M. Deitz
Robert C. Goodman
Lucas T. Hanback
John G. Heller
Dennis C. Huie
Suhani Kamdar
Lauren B. Kramer
S. Amber Lee
Mark J. Linderman
E. Jacob Lubarsky
James Robert Maxwell
Joseph C. McGowan
Patricia A. Meagher
Robert S. Metzger
Brian D. Miller
Alexis J. Morris
Nicholas T. Niiro
Roland Nikles
Neil H. O'Donnell
Dean D. Paik
Sharon Ongerth Rossi
Aaron M. Scolari
Aaron P. Silberman
Katherine M. Svinarich
Renée D. Wasserman
Alan J. Wilhelmy
Paul M. Zieff

Tyson Arbuthnot
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Areas of Practice

Mr. Arbuthnot is a member of the firms Construction Law, Complex Commercial Litigation, and Government Contracts Practice Groups.

Professional Qualifications

Mr. Arbuthnot concentrates on resolving construction disputes, including changed conditions, extra work and delay claims, and other breach of contract issues. He has experience with bid protests, warranty and defect claims, and various design issues. His practice extends to pursuing and defending lien, stop notice, and bond claims. Mr. Arbuthnot has considerable experience with both public and private projects. His clients are prime contractors, subcontractors, owners, design professionals, and material suppliers. His representation includes commercial builders, roadway contractors, solar power companies, home owners, engineers, electrical subcontractors, landscapers, and many others. He also negotiates and prepares a wide variety of construction and commercial contracts. He is a member of the Associated General Contractors of California – Legal Advisory Committee, and his duties include drafting and revising the AGC contract forms.

Mr. Arbuthnot also has experience with a wide array of other litigation issues that arise in the commercial context. He has a comprehensive background in all aspects of the civil litigation process, including jury trial experience. His practice encompasses disputes in a variety of industries, including real estate, technology, manufacturing, agriculture and retail, among others. His commercial litigation experience ranges from shareholder actions against technology companies to breach of contract claims between international art galleries.

Mr. Arbuthnot was a full-time judicial extern for the Honorable Charles R. Breyer of the Northern District of California during his final semester of law school. His duties consisted of analyzing various complex constitutional and federal issues, such as illegal banking practices under the Truth-in-Lending Act, and drafting Decision & Order Memoranda on motions and writs pending before the court. 


J.D., University of California, Hastings
Cum Laude
Thurston Honor Society
American Jurisprudence Awards (Torts, Legal Writing)

B.A., University of California, Santa Cruz

Bar Admissions

Complex Commercial Litigation
Government Contracts

Recent Publications and Public Speaking

"Public Contractors May Now Have Liability to Their Competitors for Prevailing Wage Violations," RJO Update, March 2015 (PDF) (co-authored)

"New Requirement to List Subcontractor's License in Public Project Bids," RJO Update, June 2014 (PDF)

Construction Subcontracting: A Comprehensive Practical and Legal Guide, ABA Publishing, 2014 (co-authored) Chapter 5, “Mechanic’s Liens and Other Remedies"ABA Webstore

The Subcontractor Listing Law – A Pitfall on Public Projects
Associated General Contractors of California Legal Advisory Committee Retreat, Sept. 21, 2013, Los Angeles, CA

A Contractor By Any Other Name Is Not A Contractor, RJO Update: Case Law Alert, December 2012 (PDF) (co-authored)

"California Supreme Court Restricts Application of Prevailing Wage Law in City of Vista Decision,"RJO Update: Case Law Alert, July 2012 (PDF) (co-authored)

"Construction Law Update: Recodification of the Mechanic's Lien Laws and Related Construction Remedies," June 2012, RJO Update (PDF)

"Summary of New California Storm Water Permit,"
September 23, 2010 (PDF)

"CalGreen: Green Building in California Moves Beyond Voluntary Measures,"
California Constructor, Vol. 40, No. 3, March 2010 (PDF)



Robert Dollar Building
311 California Street, 10th Floor
San Francisco, CA 94104
Phone: 415.956.2828
Fax: 415.956.6457
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