Pre Fab house - please help !

[Deleted User]

I wonder if someone could help with any pointers of any more information or anything else I can do. 

Im helping out my ex partner in his divorce. He is my kids dad so Ive stepped in to help.  He suffered devastating strokes and brain seizures and is severely disabled but can make decisions. His wife then left him and Im helping him collate his assets for mediation for the divorce settlement. 

Just before the first stroke he bought a pre fab BTL house with a tenant - thats AST ... phew. It may be that we need to mortgage that but obviously my first thought is had it had PRC repairs ? He has no idea and paid cash!  We need to try and mortgage it, to pay his ex wife off so we can keep him in the matrimonial home as it will kill him to have to move and sell. I’m just sending a letter to the solicitor who did the conveyancing to ask them. The letting agent has no idea ! The original advert did not say cash only, it just said buy to let investors. I could post a link if that would help anyone? 

Are there any other enquiries I could be making at the time. He is so worried about losing his main home and there is plenty of money at 75% LTV in the BTL -IF its mortgeable. 

We are so worried he might have another stroke with the stress 

thanks guys