Two prominent L.A. attorneys and business venture partners – Los Angeles County Bar Association President-elect Brian Kabateck and celebrity defense attorney Mark Geragos – are locked in a legal battle over a private jet they co-own.

Kabateck filed suit last week in Los Angeles Superior Court seeking at least $10 million in damages from Geragos for breach of contract over the plane, a 2010 Cessna Citation Jet Model 525 CJ1-Plus the two jointly purchased in 2014 for $3.1 million undisclosed.

Back in 2014, the two attorneys were close friends and business partners – they bought the Curve Hotel and Resort in Palm Springs that year and previously had bought the Engine Co. No. 28 restaurant building in downtown. They still co-own both properties.

But the two had a falling out over the use and care of the plane. Kabateck says in the lawsuit that the relationship between the two began to sour just before the Memorial Day holiday when he sought to use the plane and Geragos allegedly objected strongly.

After that, Kabateck alleges in the suit, Geragos failed to make insurance payments on the plane, brought in unauthorized pilots to fly the jet and then attempted to seize sole control over the aircraft, moving it to a hangar in San Bernardino County and denying Kabateck access to the aircraft.

Geragos, in an email response, did not address specific allegations in the lawsuit, but said a judge granted a motion last week that effectively grounded the jet pending a September hearing.

Besides seeking monetary damages of at least $10 million from Geragos, Kabateck is seeking a sale of the jet, with proceeds divided between the two parties.

– Howard Fine