BBG, the nation's largest independent commercial real estate services firm, is acquiring VSI Appraisal Group, a Columbus, Ohio-based appraisal firm. Terms of the acquisition were not disclosed.

With the VSI Appraisal Group acquisition, BBG will open a new office in Columbus complementing the firm's existing Columbus office by adding a specialty in affordable housing. The acquisition marks BBG's fifth acquisition this year. The firm has grown significantly to meet client demand, adding 15 offices in the last three years.

BBG appointed VSI Appraisal Group President and nationally known affordable housing expert David Ross, Jr., MAI, ASA, FRICS, as Managing Director of the office. Seven other VSI Appraisal Group professionals also joined the office.