[FL] Employment termination during green card process - material breach of agreement?

Title says it all. While this still has not happened, I suspect the Company wants to downsize and my role may be in jeopardy. I am a L1A visa holder (executive visa) and the Company has agreed to support the green card process through EB1C. This is all documented and agreed upon (e.g. official letter from previous CEO confirming the company will support the process). In November, the CFO (who has the signatory rights) reaffirmed to the law firm that the company will support the GC.

Should my role be eliminated, does that constitute a material breach of agreement as this would require me to make drastic changes to my stay in USA and potentially cost me tens of thousands in fees if not in the hundreds of thousands plus the lost opportunity to obtain permanent residency?

Note: I have moved to the USA at the request of the prior CEO.