Foreclosures and Evicting Curious Question

[Matthew Lindsey]

Hi, I’m starting to really look into buying foreclosures in my area in GA but I’m trying to run possible scenarios through my head on things that I might encounter. One question I have that I can’t quite find the answer to involves evicting. I’m familiar with the PTFA and having to allow a possible tenant with a lease stay for either 90 days or the remainder of their lease. I can tell a owner most likely lives in the foreclosure by looking at public records. 

My question is:

#1. What if  said owner creates a lease and leases the property to someone else living with them(if they are not family), would this still hold up and allow them to still occupy the unit?
#2. What if that lease they create, if it holds up, has a super ridiculously low monthly rent could anything be done about that?

Just trying to prepare. Hopefully I wouldn’t run up against this but I want to be ready. Also, I would not be trying to occupy the unit myself. Thanks