Sounds like rent can be increased over a period of time.------4 single-family homes are a good option as well.

The data seems to show that we are at the beginning of a potential long period of stagflation reminiscent of the 1970s. 

Firstly, if you want to discuss it, I'm happy to help- call me up and I'll give you some pointers- no strings.Next, make sure you ask for a clear list of what you want/need, as soon as you are in contract, and get it all before you end the inspection period.

That's what the inspection period is there for....and no, this isn't wasting the REA's time. 

Any tips on how to secure my property during the renovation period?

What happened during this last period in Cities like NY and San Francisco is totally different than what happened in Philadelphia.

Most states have an automatic HOA Document Review period when you are under contract. 

Some states allow people to reside in and take over a property if vacant for a period of time (I think there were a lot of attempts of this during the 2007-09 crisis in FL). 

Active investors, aka sponsors, aka general partners, build relationships with commercial brokers, find apartment deals, underwrite them, conduct due diligence, raise capital, manage the asset during the hold period, and communicate with investors along the way :) If you're interested in being an active investor, I'd encourage you to find a mentor.

However, the Landlord has a duty to mitigate the Landlord's damages by re-letting the property in a reasonable period of time.This is the procedure I follow for early Tenant termination of Lease:First, I maintain a professional, friendly, and empathic relationship with the Tenant throughout the process.