hopping, I'm confused about what Missy said that was untrue/disagreeable. Maybe you misread?
"Dad would probably have a hard time finding an attorney to take a custody modification case in this situation."
Uhm, so long as father has money and desire, this isn't accurate.
As for original poster, I suspect that while you may have sole physical custody, you don't have sole legal custody (as in, the father has no rights to decision-making related to kids' lives or anything other than visitation).
"Once custody is initially determined it is very very difficult to change."
As a blanket statement, this isn't accurate.
"Just because one parent's situation changed (which happens all the time) doesn't mean they get custody. "
That's essentially what Missy pointed out though.![]()

