What is the status of this house?

[Peter U.]

I have been watching this house for a year or so now. The property is down the street from me and I am interesting in buying it. Our realtor isn't able to find out anything meaningful so I looked up the address and owner and it appears that the owner passed away a few years ago. It looks like there was a property management posting in the window but it is no longer readable. Recently, a new notice is present on the door. It looks like a family member is referenced in the letter, but I'm not exactly sure what it means. Here is the letter: 

It appears there are multiple pages present but I didn't want to hang around on the property longer than I needed to. 

Any help with this is appreciated!