@Bill AntonYou can go to the Tax Claim Bureau and look at the notice file to see who was or was not notified. 

(2) If I rent out all of the units, can I still do a standard rental lease for the unit I'd be "living in," or would I have to go the roommate route instead?

The tenant says she called the police and filed a report.

The building for sale is exactly like mine so I’m familiar with many of the standard cost (insurance, taxes, hoa, general repair cost).The seller list in his remarks that it has a 9.2% cap a couple different times.First off, the auto generated cap rate from the MLS doesn’t even list that, it lists 7.64 based off the numbers entered into the listing.As far as the numbers entered:The income ($33,060) minus expenses ($8,965) does not even equal the posted $21,000 NOI.

Unfortunately, marketing is not really the top skill to be great at locating good properties, buying them properly, renovating them to at or above retail standards eliminating deferred maintenance and then acquiring quality, long-term residents and managing them properly.

Is this standard rate ?

Otherwise, savvy "professional tenants" will wait until you file a dispossessory suit on them, and then make a tiny token payment.

All this to say, a voluntary vacancy in January is filled with temptation to either lower one's standards or pay a high price in utility bills, insurance premiums and potentially emergency repairs. 

If the current owner walks away with the security deposits and the tenants cause damage before they move out you will find yourself in a hole.Lastly if you do make an offer and look to close, I would speak to the tenants and let them know management for the property will be changing, ___ is the day rent is due, ____ is the day a late fee will be applied, and if they are negligent you WILL file for an eviction.

The big issue I am concerned with is trying to buy a home that has foreclosure proceedings filed (so the owner is behind).