The title company is definitely being uncooperative--they may need a reminder that they're being asked to make a risk-aware decision that they should evaluate (in an escalated fashion, with management oversight) whether any potential cause of action would remain after the quitclaims from dad, and specify exactly what that is, to whom it would belong, and how exactly it might arise as a claim.

I find that sometimes making companies be explicit about the realities surrounding their title concerns shames them into retracting their requirements on title, since, frankly, to type out what in this situation they're anticipating as a cause of action should be pretty embarrassing.

That said, ODR is likely their underwriter, and they are awful when it comes to reviews like this.  So if they asked ODR, ODR would've asked for the absolute maximum with zero sense of the realities of obtaining it.