Can i put a mechanics lein on a roofing contract for not finishing the work he did most of the roof but did not finish i have a contract with the roofing owner and paid most of the money he wanted and also found out that he used the material he bought for my roof to finish it on another roofing job and not doing his side of the contract by finishing it up he claims since he put us na payment plan that he dont have to finish the roof until we finish paying him...