A battle is intensifying between law firms connected to an insolvent New Jersey cannabis cultivator known as the Harmony Foundation.

Two law firms, Lowenstein Sandler of Roseland, New Jersey and Cyrulnik Fattaruso of New York, are accused of legal malpractice in a suit filed Tuesday by a trustee for Harmony Foundation. The suit claims the two firms have a conflict of interest because they simultaneously represented Harmony and Jeshayahu Brodchandel, who allegedly sought to gain control of over the cannabis company.