The Mount Vernon Co. has purchased two properties in Boston’s Beacon Hill for $4.8 million.

The properties, located at 86 Charles St. and 120 Charles St., include 18 residential units, four parking spaces and one retail unit, according to a statement. Boston Realty Advisors (BRA) served as the broker for the properties.

"During the buyer selection process, Boston Realty Advisors assured the sellers that The Mount Vernon Co. had an excellent reputation for closing," said Jason S. Weissman of BRA. "We had complete confidence that the deal would close when we received the offer from Bruce Percelay of The Mount Vernon Co."

The 86 Charles St. property is 5,178 square feet and was last assessed for $1.6 million, according to records obtained by The Warren Group, publisher of Banker & Tradesman. The 120 Charles St. property is 3,312 square feet and was last assessed for $1.2 million.