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Our Team

William M. Hess, GRI

President, Founder, Associate Broker

Certified General Appraiser (Retired)

Mr. Hess grew up on a Lancaster County Pennsylvania Farm and learned the value of hard work and honest dealings. His Real Estate Career began in 1967 (49 years). He has held a real estate Broker’s License in Pennsylvania since 1967. He also became a Certified General Real Estate Appraiser in 1991. With over 45 years of selling, owning, developing and appraising income producing properties for many of the banks in south central PA, Mr. Hess brings rich experience to commercial real estate buyers and sellers. Currently Mr. Hess owns three manufactured home communities and previously owned two large communities in the Elmira NY area. His manufactured home community experience includes expansion of existing parks, building two sewage treatment plants, upgrading existing water systems to Department of Environmental Protection existing requirements. He was responsible for installing new water lines, water meters and new dedicated mains.

Mr. Hess lives near Lititz, Pennsylvania with his wife and between the two of them enjoy seven married children and twenty one grandchildren with eight of them in college.

Mark H. Diffenderfer

Vice-President, Broker

Certified General Appraiser(Auctioneer)

Mark provides 25+ years of real estate experience for his clients. Having grown up in a family where buying, investing and managing real estate were the norm, Mark had an ongoing desire to learn more. In the early 1990’s Mark got his Real Estate license under Bill Hess and later became an appraisal assistant for Bill and worked towards and achieved his General Appraisal Certification in 1997. He focused on appraising commercial properties during that time. Mark also had become a licensed auctioneer in Pennsylvania and has since sold hundreds of properties at auction using a unique method that really motivates buyers. Wanting more comprehensive real estate knowledge, Mark got his Real Estate Broker’s license in 2002. In 2006 Mark accepted a position at Susquehanna Bank as their first Certified General Appraiser. Setting up an appraisal review department and ensuring compliance to Federal Banking regulations as well as ordering and reviewing the bank’s commercial appraisals were some of Mark’s responsibilities at Susquehanna Bank. An acquisition and then bank-wide layoff in 2008 brought about another change with Mark leaving the bank and focusing back on real estate auctions. During this time Mark also was working with Bill in buying, fixing up and reselling single family homes as the real estate market had been undergoing significant challenges due to the economic downturn.

In more recent years Mark has been working in real estate brokerage and real estate auctions. Mark lives near Manheim and has 4 children (3 married) and 5 grandchildren. He has been involved at Lancaster Grace Church where he has served as elder, worship leader and assistant financial secretary. Mark enjoys reading and hiking.

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