Also if you die even if you left a will leaving everything to your children he could claim the house or at least an interest in the house for the rest of his life if it could be proved he was dependant on you
^ Thats disturbing if true.
This is the problem with marriage after children when the woman has assets. I've known women rush into this, even when its pointed out the problem here - that they are effectively disinheriting their children - and without even taking any legal advice or drawing up any documents! But they push ahead regardless. One friend started shouting and crying at me, when I pointed out this consideration. She preferred not to think about it
. They divorced eventually, but I don't know what happened as we lost touch. I think she gave him some money or something.
At least OP is considering the ramifications.
But if what Bertie alludes to is true, its all so complicated, legally and financially, marrying later in life when you have children already does seem a questionable decision. You could draw up a whole raft of legal documents, but you could never be sure, as Bertie said.
Also, if you are the only one with assets, you could be giving up a massive amount of your own financial security if things go wrong. Can you not just be a happy couple without the marriage contract, at this stage in life? I think you would have to be very very sure of someone and have major legal advice and take the necessary measures to ensure you and/or your children didn't lose out.