Deceased prior owner and current insurance

[Lynda Poe]

Here's the story:

I have "purchased" a home from a man who inherited his father's house with a mortgage.

There is still the original mortgage with PITI. I am trying to have the original insurance changed to a new policy with a new company to insure my interest.

I need to somehow replace the current insurance because the mortgagor is deceased.

The current lender is not being helpful in the matter.

Suggestions please?????

Thanks in advance