Stupid question probably. Bank we are with seems a bit meh about lending me the amount I'd need to buy husband out. Looking on line and based on my income and the amount I need it seems a lot more likely I could get the new mortgage for the remaining balance on the existing, plus pay out to X, plus 10k for improvements, from a different provider and actually at a better rate.
But how does that work with giving the amount to him for his share of equity and getting my wedge for improvements? Presumably providers give on the basis you're spending it on bricks and mortar not that part of it is a cheque to give to an X. Or, as long as the original mortgage is paid off anyway, and you're meeting the payments on the balance, that money just becomes an available credit to be used for whatever.
Halp! Confused! It's been so long since I got a mortgage I can't remember how it all works.