its a standard sub contract agreement - damages for delay,timely completion, mediation before court, etc. AIA 201 is a part of this agreement - read thoroughly and cross out subsections you don't like. you can (and should) add your own qualifying clauses or riders to this agreement. screw em if they don't agree, this contract is geared toward the owners and architects and although mostly fair, has some clauses you might not want to agree to. If you don't understand all the language, have your lawyer go over it with you in detail before you sign, its worth the time to understand it completely (since you will undoubtably run across it many times)