In the court documents obtained by TMZ, the 36-year-old Grammy Award-winning rapper claims that Sweeney who served as his lawyer from 2005 through September 2018 charged him 10 percent when most deals in the industry were around five percent.
According to Lil Wayne, the up-charge saw Sweeney make $20 million during his tenure.
It was also claimed in the document, that the lawyer got greedy and started proposing he get an additional 10 percent of all profits from Wayne’s label, Young Money but the rapper prevented that from happening.
In the suit, he says Sweeney managed to pull even more funds out of Wayne by enlisting the help of another law firm for the ongoing legal battles with Birdman and Cash Money Records, as well as Universal Music Group.
Wayne added that the firm got 23 percent of the Cash Money settlement and 15 percent of the Universal Music Group settlement.
Those percentages were added onto the 10 percent Sweeney was already expected to receive.
The Louisiana rapper is suing his former attorney for at least $20 million.