IMO, If you were F1, CPT, OPT, H1b etc there was a chance that they would forget it. Nobody wants to open the can of worms, especially dh*** companies who eat shit. When we are in OPT/CPT/ H1b there are lots of things going on - d** resume, h1b money, their lying to main vendor about you being Tamil Nadu's employee rather than ABC's etc etc. But with GC they know that ultimately you will quit their company so they try to write their non-competes by consulting an Attorney. E.g., how IBM writes non-competes so that you cannot go to Accenture while working for Bank of America at the same time. I mean their employment agreements are all the same but with their employees who have GC (i.e., who did not go through their h1b/GC process) they may tend to use black and white letter of the contract. If you know what I mean. You have strong points in that you are saying you can open their can of worms. Either you talk to them and find out what are they up to. They are not going to sue you for non-compete just like that. There is a process involved. They will have to send you notice first. But the longer you stay with the client the damage claim might be more. Better talk to them to find out what are they up to. If you like this client and want to stay with them (because you may make a career with them) then definitely talk to this dh*** company. Find out (indirectly) if by giving few thousand bucks (like ~2k-3k) they will release you from any indemnity. Something in this line. But if you continue to work with client, covertly, then you are always psychologically fearful.