Not really an AIBU, more of a rant to be honest.
I divorced my ex 8 years ago at the age of 25. Please don't have a go but I had never heard of a clean break order. We had no savings, property etc anyway.
So now, I have savings, a pension and am looking to purchase a property next year and want a clean break. He is point blank refusing to sign it unless I give up my CMS arrears (2k) and any ongoing payments they get out of him. Currently, he hasn't paid for four years and the case is with the disclosures team to identify a bank account to try and get some money. Then it would on to court.
So, yesterday, I saw my solicitor (£99 for 45 mins). She is going to write to him (£225 + VAT), then if that goes smoothly, another £500 for the clean break. If not, it could be up to £3k each 

I'm so worried. What should I do? Should I just write off the arrears even though it's my son's money? Should I wait and see what the CMS come up with? My head is all over the place because of this bastard and I'm angry that he's going to take a chunk of the money DP and I have been scrimping and saving for our own home.