AZ Trustee Sale

Hello, Have a question about a property which is going to sale. Wife took title as sole and seperate and took out a first Deed of Trust. Couple years later she deeded the house back to herself and her husband and they together took out another loan. This was done with a grant deed which is usually not used in AZ. Anyway, can I assume that the loan they took out last is in second position and being wiped out at Trustee Sale even when a new deed was recorded. Never found something like this. Appreciate some insight, Barbara