How low is unrealistic

[Tavaris Little]

Hey everyone, so I have been watching this duplex in my area for a few months now. It listed at 90k in the beginning and has been lowered to 85k. This property has now been on the market for almost a year and I want to offer 65k but I feel like my agent will not want to and it may offensive to the seller. The owner has fully paid the property off and is in her 90's so I was hoping that would be a good thing for me. Am I going to low on the price??