According to Deadline, the actor will play "brilliant but unmotivated" college student Mike Ross.
In the pilot, Ross is "recruited by a top Manhattan corporate law firm despite not being a lawyer. He has to use his book and street smarts and hustling skills to keep the charade".
Adams was previously cast in the pilot for new NBC sitcom Friends With Benefits but was recast shortly before the show went into production.
A Legal Mind will be produced by Mr. & Mrs. Smith director Doug Liman.