Unfortunately you could possibly be treated as a tenant as you are not on the deed (title) to the property. That means that he would have to give you formal written notice to vacate the premises, just as he would for any tenant who is on his property. If you have no lease with the tenant, it is likely a 30 day notice requirement (in writing) asking you to leave. If you refused, he could try to have you removed from the property or he could change the locks. I'm so sorry your husband is doing this or at least threatening to do this.
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