Seaboard Realty, a company that owns and manages a number of commercial and residential properties in Stamford, Conn., filed for bankruptcy protection yesterday and its president stepped down after two partners in the company questioned his bookkeeping, the Stamford Advocate reported today. Unspecified “recent events” prompted two owners to question the company’s finances under now-former president John DiMenna’s leadership, and the two hired a law firm and forensic accountant, according to a statement from the company. DiMenna resigned from his managerial duties with Seaboard Realty and also from its affiliates.