A Simsbury lawyer who had several legal skirmishes with former Attorney General Richard Blumenthal and who recently sued Simsbury police for defamation has been disbarred by state attorney disciplinary officials.

James Oliver, a partner in the Oliver Law Firm, was sanctioned primarily for lying to a client about the credentials of a forensic accountant who was hired to work with him on a major case. Oliver repeatedly claimed that the accountant, Cynthia Michaud, was a federal agent, even though Michaud denied that was the case. During one secretly recorded conversation in a McDonald’s restaurant, Oliver allegedly told the client Michaud was “involved with several national intelligence agencies,” according to state authorities.