The rift between Lil Wayne and Cash Money Records has grown wider and appears to be headed to court. TMZ reports that Wayne has fired off a letter to Birdman demanding he release Tha Carter V or face a lawsuit asking for his release from the label.

The two, who once had a father/son type relationship, are no longer on speaking terms. Things reached a boiling point earlier this month when Baby pulled the plug on The Carter V’s release.

Wayne insists the album is done, while Birdman continues to insist there is still work to be done behind the scenes to properly launch the project.