Zacks Investment Research downgraded shares of MainStreet Bancshares (NASDAQ:MNSB – Get Rating) from a strong-buy rating to a hold rating in a report issued on Wednesday, Zacks.com reports. According to Zacks, “MainStreet Bancshares Inc. is a full-service bank. The bank provides deposits, makes loans and other services for the public. MainStreet Bancshares Inc., formerly known […]