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system
what happens to your spouse's sole proprietorship if they die?
user
for sure you should get a lawyer on this one, but it would seem to me that the simplest path forward would be to convert the business to a partnership where both spouses are owners, and to write a clause into the partnership agreement stipulating what happens upon death of a partner.  such an approach really should be done with a lawyer to make sure that it's all legally sound and will stand up in court if needed.
assistant