A Milton real estate agent with an office in Dorchester was arrested last week on federal wire-fraud charges, according to the US Attorney’s office. Daniel J. Flynn, III, 52, has been under investigation for a scheme in which he allegedly tricked investors into lending him money to buy property he already owned. Investigators were seen confiscating items from his office at 161 Granite Ave. in Dorchester last Friday.

According to the complaint released by US Attorney Carmen Ortiz’s office, Flynn defrauded investors of millions in a real estate investment scheme that began in at least 2007. Flynn used investor’s money to pay his personal debts and to repay prior investors, according to the complaint.  He could face as many as 20 years in prison if convicted.

A Boston Globe profile of Flynn, published last May, described Flynn as a “strait-laced real estate broker and auctioneer,” who was known as a “go-to guy” to assist in Greater Boston’s charity gala circuit.