The talent management and production company will pursue strategic brand partnerships, endorsements and non-scripted projects for the award-winning artist.
The company, which works with artists including Machine Gun Kelly and Avril Lavigne, will build out its country presence in Music City.
The new lawsuit is a counter-lawsuit to a complaint filed by two Jane Does who sued Trevi and Andrade last year.
The indie label is home to Peso Pluma, Jasiel Nuñez and more.
The pop star is now repped by Brandon Creed's Good World Management, sources tell Billboard.
The firm has experienced a recent mass exodus, leaving its roster in flux.
Jakob Nowell will play with Sublime's original surviving members for the first time later this month with the possibility of more shows to follow.
The new venture, called To The World Soon, already has a half-dozen clients in addition to the Def Jam-signed singer, whose tour kicks off today.
"We're not afraid to take chances because Dolly doesn't go on everyone's highway, she creates her own path," says Parton's manager Danny Nozell.
Elsewhere, the singer expanded the role of her brand manager, Leslie Matthews Dugger, and hired Tyler Lewis as her management coordinator.
