Could I fight for some custody time with my step son against the mother? Could a power of attorney signed by the father give me some sort of rights. I love my step son so much and if given the chance the mom would viciously take him without me in the picture. Would I have a chance to have the same custody as the father? or would I only be allowed visitations. My step son is a Colorado resident like I am and the mom is a Virginia resident...

Your husband could identify you in his will as the guardian for his son. While this is not binding on a court, if he also allocated a sum of money to be used to retain counsel, you might be able to obtain some parenting time in the event of your husband's death. The older the child is, the better the chance of his staying with you.

So how would that work to constrain parenting time in that event? How could a legal counsel get that?