Verizon Verizon FIOS FICO, Credit Report. Failure to Pay, FIOS Internet

Hi do you have and order number for this type of name change ? when doing a name change on fios we do and out an out order for the old customers account and new install on the new customer acct at that point u should have gotten an order number also did her order fail credit if her order didnt pass our credit systems she would have been notified and in that case the orders are cancelled and ur still responsible if that was the case she is at fault and not verizon its her responsiblity to make sure all orders have completed and your responsibility to make sure u received a final bill and we would have sent that bill to your final address sorry to hear about your divorce and its and emotional time but you still have to protect yourself if you have and order number and your in california ,texas or florida i can get you some help!!

But as to who you sue really depends on several things.

First of all what exactly do these "notes" say?  Unless your Ex actually signed an agreement it may be hard to say that Verizon actually agreed to what you think they did.  For example if the notes say "Mrs. X will be paying the bill so send all bills to her address" that is different than "Mrs. X takes over full financial responsibility and Mr. X is no longer financially responsible as of n date."   Generally with the later a company won't do this over the phone without something in writing.  Another indication as to if you were really off of the account or not is when the bills came to her house was it her name or your name on the account?

But because the notes are "internal" notes it would pretty much take a court order to get the notes.  The only way you are going to get this is by filing a suit.  While you may have a valid suit against Verizon it may take you filing suit to even find out for sure. 

So you may want to try a simpler way out.  Since this is already paid try sending a dispute to the actual Credit Reporting Agencies.  Quite often(but not always) if a Collection Account is paid a Collection Agency won't respond to the dispute.  If they don't respond the Credit Reporting Agency will remove the listing, which in the end is really what you want.

I'm not sure if this will help, but have you tried disputing it with the credit bureaus? In your dispute you should mention that Verizon has notes indicating your ex-wife's assumption of the debt.  Maybe that will carry some weight because Verizon will have to prove the debt was yours, not hers.