If I complete all active projects and then close my company can GC's hold retainage owned until the warranty is up?

I'm looking to finish my active projects and close the company in September. We are in a good spot to get all AR paid off and have some earnings at the end. My concern is if I go through with it will the GC's hold our retainage check throughout the 1 year warranty we are obligated to provide at the end?