House ownership after divorce

Hi, looking for some advice about where I stand in this situation please.

Ex wife and I bought a run down house some years ago in joint names, we divorced 4 years ago and courts awarded ownership of the property to ex.
We had a clean break and the terms were that as soon as the house is completed to a liveable standard that she was to remortgage and in the process remove my name from the mortgage/deeds. She cannot remortgage at the moment because its in such a bad state (no kitchen, bathroom, heating etc) -it wasn't AS bad when we bought it, and was liveable hence how we got the mortgage)

Neither of us own another house, we both rent but she is continuing to pay the mortgage on the property.

There was no time limit given and she is dragging her heels and not completing the house and I cannot move on until this has been sorted.

I have threatened solicitor action but she said she has checked with her solicitor and the terms were that as soon as she has completed the house I can be removed and not before.
This can't be right can it? Or she can continue to just not bother finishing it forever!

She did look into removing me when the divorce was finalised but her mortgage company said she would have to remortgage to another product - they went into liquidation and no longer offer "new" mortgages/remortgages so she would have to go an entirely different lender who wouldn't touch her with a bargepole given the state of the place.

I'm on a low income but not entitled to any legal aid so before i waste my ££ contacting my solicitor i just would like to see where i stand in regards to this.

Thanks