Good morning, thank you for your patience. I will say that you must seek professional assistance with drafting your will and sorting out your legacy, in order to ensure that your wishes are followed and to prevent unwanted claims on your estate from your husband.
It's not likely that a divorce would be processed in time and this is certainly not something you should have to deal with in the last few months of your life.
Starting with the main family home, his being named on the mortgage as of last year does not have much impact, as he would have established a right to the property by virtue of the marriage. There's also no prenup in place (not that these are legally binding under UK law in any event). If you are joint tenants now, you could consider severing the tenancy to separate the shares that you have in the property to enable you to pass your share directly to your children, not him. You could also consider allowing him the right to remain in the property for his lifetime but then have the asset pass on to your children - thereby providing for him during his lifetime and your children thereafter.
As to your other assets - the question should be whether these are matrimonial or not. It's arguable that any assets that precede the marriage are not matrimonial - and you can leave them to whom you wish.
Inherited property could also be excluded from a joint asset pot in your case as it's not in the UK and therefore not something that he relies on or needs to live off.
As I said, you need to make an appointment with a solicitor and draft your will very carefully. You also need to consider writing a clear letter of wishes and/ or an Inheritance Act 1975 statement to go alongside the will.
He may well wish to challenge this after your passing, but as long as there is sufficient provision for him in the will then a challenge is not likely to succeed. And sufficient provision can be the right to live in the home without him actually having full ownership, as above.
You will be able to locate a solicitor with the link here:
I hope that this answers your question?
Thank you for your enquiry today. I am happy to answer follow-up questions - please do get in touch with requests for extra information or further queries and I will do my best to help you.