What happens to 2nd position if 1st initiated foreclosure?

[KC Zhang]

I'm looking at several 2nd NPNs for purchase. Several of 1st position holder started the foreclosure process. The underlying assets have enough equity (FMV) to cover both 1st and 2nd. How can 2nd note holder ensure the property is sold at FMV at trust deed sale? I assume if is sold at FMV, 2nd lien holder will get they owned. Thanks for your help. Casey