The attorney alleges that Mitchell signed a document in September 1974 releasing the Hendrix estate from legal claims and agreeing not to sue the Hendrix estate. She says Redding, too, signed a similar document making the same claims in April 1973. The musicians, Weber says, were compensated for signing the documents.
Both the Mitchell and Redding estates claim they are no longer bound
to those documents, where the Hendrix estate says they are indeed
enforceable. The Hendrix estate wants a judge to issue a declaratory
judgment saying that those contracts are still valid. https://www.rollingstone.com/music/music-news/jimi-hendrix-noel-redding-mitch-mitchell-estate-lawsuit-1287466/