TMZ has learned ... Lindsay Lohan's lawyer, Shawn Chapman Holley, has resigned as LiLo's lawyer.
TMZ called Holley for comment on a story we're working on, and she informed us she is no longer repping Lindsay. Sources tell us Holley resigned earlier today.
As for who Lindsay will be hiring ... we're told she's a brand new lawyer, Tiffany Feder-Cohen, who was just admitted to the bar in November.
As for what Lindsay wants her to do ... stay tuned. We'll tell you shortly.