Paul L. Barrett, who was Governor Charlie Baker’s point man to lead a high-profile review of the beleaguered MBTA, abruptly resigned Friday after the Globe raised questions about the adviser’s personal financial troubles, including unpaid federal income taxes of nearly $200,000.

Baker only a week ago named Barrett, a former director of the Boston Redevelopment Authority, to chair the panel of experts charged with examining the operations of the T, including precarious finances that have hindered efforts to modernize the transit agency.

But Barrett has had financial woes of his own for at least the last decade, according to public records examined by the Globe. They include multiple state and federal tax liens, several foreclosure notices on his Cohasset home, and a $1 million legal judgment stemming from a Cape Cod real estate development deal that went sour.