Owner Died in 2012!

[Charlotte Trusty]

Hello,

My friend lives right next to a duplex that has been abandoned for years. The owner died in 2012 but the property is still in his name. I have tried to contact his family and left a couple messages with no luck. The bank won't give me any info since I'm not authorized on the account. 
This would be a dream fixer with some serious opportunity. 
Any tips on how to get more info on his estate? Or should I just wait until it forecloses? No idea when that will be, if ever since it has sat for so long already.  The bank is making the tax payments, and is up to date so far. I don't have much more info than that. 
Suggestions?  Thanks!!