I recently moved and it took about 3 months to sell the property. My
local agent was much more understanding and suggested, hypothetically,
that IF a person were to move and leave the property unattended, the
insurance company would drop the coverage, and the mortgage company
could then possibly call the mortgage due at that point. Her advice
was something along the lines of "no need to tell them about it until
you have closed on the property sale, just forward your mail"