Our Company

Grant Woodruff founded WDRC In 2007. Since that time Grant has served as Mediator, Special Master and Discovery Referee on complex construction defect matters. He has also worked as Mediator to resolve on a variety of matters involving personal injury, contract, real estate and business disputes. 

Bill Diffenderfer joined Grant in 2009, focused on Mediation of personal injury, professional liability, business, real estate, and other matters. Since that time, Bill has helped parties settle hundreds of disputes of all types and sizes.

Grant and Bill are available for Mediation, Arbitration, Special Master, and Discovery Referee services. They each bring years of litigation experience to the table and pride themselves on being sensitive to the needs of all involved in their proceedings through courteous, expedient, cost-effective and professional service of the highest caliber.


“Quickly grasps complex issues of law and fact"

"Able to measure the personalities of the participants and move within them effortlessly to place everyone at ease"

" Engages the trust of both counsel and claimants, so that all sides are confident that their points of view are understood and evenly presented.”

Grant C. Woodruff, Esq

Mediator, Special Master, Discovery Referee, and Arbitrator

Grant Woodruff is the founding member of Woodruff Dispute Resolution Center.  Since founding WDRC in March of 2007, Mr. Woodruff has had the honor of serving as a Special Master in several cases throughout the state of California.

William J. Diffenderfer


Mediation participant in hundreds of claims and cases over 25 year civil litigation career.  Over twenty years’ experience as Mediator (first as adjunct to regular litigation work and full time since 2008) with over one thousand Mediations and settlements. 

Personal Injury
Construction Defect
Business Litigation
Breach of Contract
Real Estate Matters