回复：回复：请问, 跟律师脱离委托关系了, 要报告移民局吗? 什么程序?

If you do not report it to USCIS, that does not matter too much. But USCIS will send the correspondences to your lawyer and that might delay your responses to USCIS sometimes though the lawyer has the responsibility to forward this kind of correspondence to you.