Real estate agent and community activist Ken Jaffe has joined Brookline-based Unlimited Sotheby’s International Realty.

“We’re thrilled to welcome Kenny and look forward to all that he’ll bring to the company,” Jon Ufland, principal and managing broker of Unlimited Sotheby’s, said in a statement. “His technical skill set and grassroots, consumer-driven approach to business set the bar high and make him a valuable asset to our organization.”

“I joined the brokerage to work for a company known for its elite reputation, excellence in marketing and technology and being at the cutting edge of its field,” Jaffe said in the statement. He has 20 years’ experience business development director for several nonprofit organizations.

A Brookline native, Jaffe has long been active in a number of community and volunteer organizations. Past president of the Brookline Rotary and Rotary International, he has also worked with the New England Kidney Foundation, Brookline Education Foundation, MA Immigrant & Refugee Advocacy Coalition and Gay & Lesbian Advocates & Defenders. Jaffe was also named Man of the Year by the Jewish Alliance for Law and Social Action in 2009.

“Jaffe’s addition to our roster, in particular his knowledge of and commitment to the Brookline community and local area, is also part of our growth strategy to build momentum and strength in this niche market,” Ufland adds. “We are fortunate to have him join our team.”