Thanks for the further question. In the event that the terms of the mortgage are breached or if arrears start to accumulate they will initially seek her to settle the arrears and if she does not then they will likely commence possession proceedings for the arrears. The mortgage company has no interest on him occupying the home as they are married and he has a right to occupy it, however depending on the terms of the mortgage he may not be allowed to run a business under the terms and this will need to be checked.
I hope this further assists you. If you found this information helpful please provide a positive rating using the stars at the top of this page. I will not be credited for your question without a positive rating. Thank you.