A group of real-estate investors who recently bought Mary Ann's in Cleveland Circle, the Beacon Hill Pub and the Tam in the Theater District told the Boston Licensing Board today that the only changes they will make to the watering holes is to hire new managers - including one better known for running more upscale eateries in JP.

The board decides tomorrow whether to approve long-time bar owner Barry Bornstein's request to sell the three bars' licenses - at $250,000 apiece - to a group headed by Fred Starikov and Steve Whalen of City Realty. Their new company, Greater Boston Bar Co., is also buying the buildings that house the bars for a total of $8.6 million.

"There will not be any changes" at the Tam, Greater Boston's attorney, Michael Ford, told the board. He made similar assurances about Mary Ann's, which has been serving BC students for more than five decades, and the Beacon Hill Pub.

In addition to deciding whether to approve the license sale, the board must also approve the proposed new managers for the bars.

Greater Boston attorney Michael Ford said Mary Ann's would be run by Keith Harmon, best known as part of a group that owned Casa Verde and the Centre Street Cafe in Jamaica Plain.