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Welcome to the Synergy Group



The Partners of the Synergy Group are  comprised of five principal owners  :  Brian Flahavan, Greg Windisch,  Keith Christopherson, Brenda Christopherson and  Andy Christopherson.  This collabroration  was developed with a mutual  interest in real estate and legal expertise.

Brian Flahavan is a civil litigation attorney in Santa Rosa and is the  legal counsel for the Synergy Group. Brian graduated  from the  University of San Francisco School of Law. In 2002, he opened Flahavan Law Offices ; a litigation firm, with offices in Santa Rosa, Los Angeles and Westlake Village. 

Greg Windisch has lived in Sonoma County for 25 years, where he worked in the wine industry before co-founding Trilogy Glass & Packaging. After serving as its President for 10 years, Greg sold Trilogy Glass & Packaging to a global packaging firm in 2011. Greg is instrumental in the building of  the Synergy Group brand.

Keith Christopherson began his career in Real Estate and Construction in the 1970s, as an apprentice carpenter. In 1979, he co-founded Christopherson Construction, which evolved into Christopherson Homes several years later. Keith was inducted into the California Builders Hall of Fame in 2006. 

Brenda Christopherson is the co-founder of Christopherson Homes. With 35 years of real estate experience, she has received hundreds of awards, including the JD Powers award for “Best in Customer Satisfaction".  

Andy Christopherson has an extensive background in construction and development. Andy focuses on general construction and remodeling, where he has overseen the “renovation and resale” division of Synergy Homes for the last five years.