In a declaration filed on Wednesday in a Nashville chancery court, Hall also lamented the deterioration of his relationship with and trust in his musical partner of more than 50 years.
The joint venture in question includes Hall & Oates trademarks, personal name and likeness rights, record royalty income and website and social media assets, the declaration states.
A judge has issued a temporarily restraining order blocking the sale of Whole Oats Enterprises LLP to Primary Wave IP Investment Management LLC while legal proceedings and a previously initiated arbitration continue.
A court hearing is scheduled on Thursday in the case. Hall is seeking further court action to keep the transaction on hold.
"While falsely contending over the last several months that the Oates Trust wanted to maintain ownership in WOE, John Oates and the Co-Trustees engaged in the ultimate partnership betrayal," Hall said in a declaration.
"They surreptitiously sought to sell half of the WOE assets without obtaining my written approval."
Derek Crownover, an lawyer representing Oates, has previously said the musician's "team will work toward a resolution that makes sense for all involved, but for now we plan to let the facts, law and courts play this one out."
He said the legal team will file a declaration by Oates soon as well.
A Nashville chancery court judge issued the temporary restraining order on November 16, the same day Hall filed his lawsuit, writing that Oates and others involved in his trust can't move to close the sale of their share until an arbitrator in a separately filed case weighs in on the deal, or until the judge's order expires — typically within 15 days, unless a judge extends the deadline. Hall's declaration was initially filed in the arbitration case.
The lawsuit contends Hall opened an arbitration process on November 9 against Oates and the other defendants in the lawsuit, Oates' wife, Aimee Oates, and Richard Flynn, in their roles as co-trustees of Oates' trust. Hall was seeking an order preventing them from selling their part in Whole Oats Enterprises to Primary Wave Music.
Primary Wave has already owned "significant interest" in Hall and Oates' song catalogue for more than 15 years.
The lawsuit says Oates' team entered into a letter of intent with Primary Wave Music for the sale, and alleges further that the letter makes clear that the music duo's business agreement was disclosed to Primary Wave Music in violation of a confidentiality provision. Additionally, Hall said in his declaration he would not approve such a sale and doesn't agree with Primary Wave's business model.
Hall said he was blindsided by Oates' plan to sell his part of Whole Oates Enterprises.
"I am deeply troubled by the deterioration of my relationship with, and trust in, John Oates," Hall said in the declaration.
Hall said in his declaration that the ordeal has unfolded while he's been on tour throughout the US west coast, Japan and Manilla. Hall said he believes Oates timed the sale "to create the most harm to me."
Hall accused Oates of becoming "adversarial and aggressive instead of professional and courteous" toward him in the last several years.
As part of a proposed "global divorce," Hall said he was entertaining Oates' idea to dissolve their touring entity and a separate partnership related to their musical compositions and publishing, while Hall raised the idea of dissolving Whole Oats Enterprises.
