A court document filed by DeGuerin states he received a fax at 2:10 p.m. Friday from Stanford, asking to substitute the law firm Patton Boggs as his criminal defense counsel.
DeGuerin asks the court to be relieved of any more responsibilities relating to Stanford.
Patton Boggs is a Washington, D.C., firm with national and international practices.
A few weeks ago, DeGuerin threatened to withdraw as counsel because Stanford's assets were frozen in federal receivership.
Stanford and other executives with Stanford Financial Group were indicted in June on charges they ran a $7 billion Ponzi scheme on investors. All pleaded not guilty.