"We have no idea when payment will be made, which is so unfortunate," says one attorney whose client contributed to Vultures 1.
The case claimed the Tony-winning play - widely seen as a reference to Fleetwood's infamous recording session - was an "unauthorized adaptation" of a 2012 memoir.
Marking her return to the label, the industry veteran will be based in Los Angeles.
The country singer has joined Black River Entertainment's Black River Records, after nearly two decades with his former label home.
"We’re excited to amplify his brand and bring cultural crossover to global audiences,” says Suhel Nafar, EMPIRE'S head of West Asia and North Africa.
Under the deal, which also includes image and likeness rights, the company will work with Perlman on marketing, branding, digital, synch and film/TV opportunities.
New music dominated the short-form video app this year, while sped-up songs lost traction.
The sex trafficking and racketeering trial is set to begin on May 5.
Kerkhover will run point at BMG's offices in Los Angeles, Miami, Nashville, NYC and Toronto.
The verdict, which will see the last two defendants set free immediately, marks the end of criminal trial that has captivated the music industry for nearly than two years.