Need help again please, just want to give up.

The relationship between him and the HA is contractual, so it will depend on what is in the contract.

You mentioned him signing something

When he moved out, he went to the housing association office to advise them that he was moving out and he said that they got him to sign something, but he can't remember what it said and he was never given a copy - after all this time he wouldn't have kept it even if he had.

So you are attempting to track down the basis of the contract and they appear to be resisting this. All of it points to a complaint further down the line. He needs the information to understand his legal position. That is all he wants so get them to understand this is a clarification issue and not a payment issue.

Has your other half called the HA to see if he is still listed as a tenant?

The tenancy agreement will state he is because he would have signed it when he moved in. They won't provide any that doesn't have his name on.

The deed of assignment it sounds like he thinks he signed has to be signed by both tenants to be valid.

If he never heard back it sounds like it was never signed by his ex and therefore not administered.

This is well within the HA rights as legally they cannot put a tenancy into a sole name without that person's consent to accept it.

The advice above is all good. But having read the thread I haven't been able to establish if the basics were covered.

Could your OH not just book an appt with the HA rather than delays things with hand written letters. He could walk in and evidence his ID there and then and get things moving. He wouldn't need to provide contact details but rather than dancing around things could have it all laid out on the table and explained to him

If he is still a tenant then yes they can add rent and any court costs to the account if they are being accrued. He would also still remain jointly liable regardless of whether he still lives there.

He would be jointly liable for any debts incurred after he moved out also if the full process to remove his name from the tenancy wasn't completed.

If there were arrears or debt at the time of the paperwork being done its also likely to have been rejected and they only remove a tenant when an account is clear from any monies owed.

HAs cannot just add random costs. Any costs they do add would need to comply with their policies and procedures. HAs represent in court all the time and know what they need to evidence to get their money back. Added and unjustified costs would be identified immediately by the judge.