The relationship is Owner has a contract with GC to remodel a house in Jackson, Wyoming. GC wants Sub to do work, but Sub has a questionable non compete agreement with Regi that all work Sub does with GC will be channeled through him. So Sub enters into a T&M contract with Regi, not the GC, with rough estimate to do work. GC has a fixed price contract with Owner to do the work which Sub is unaware of. When the T&M charges mount because of change orders, weather, and other unexpected charges the GC gets nervous and does not want to confront the Owner with extra charges, so the GC pressures the Sub to write an agreement giving up some of what was owed or not getting paid. The GC is not a party to the contract between the Sub and Regi, but because of his pressure and threats the Sub agreed, and things got worse after that. All of the Subs experienced crew was laid off because the GC did not want to pay for any more work at their rate and expected the Sub to complete and pay for the continued work. Sub continued to work himself and with help from less expensive crew without a new contract and was now paid for directly from GC, but because of GC backcharges and not being paid the relationship ended before the project was complete. In my mind this is a gross example of a 3rd party interference in a construction contract.