Good point on three rafter tail. I’ll look in the attic in that area to confirm.

Yeah there’s flashing above there and it’s possible this is the source of the leak.

I’m afraid what I’m going to have to do is take all the siding off above here to expose the flashing and inspect it and repair. Then to remove and fix the rot I’m gonna have to take everything apart to get into that area behind the soffit - remove the gutter, fascia, etc to gain proper access