In my opinion the most successful investors invest where they get the best returns regardless how close they physically are to the market. 

Each unit has its own tax PID, but the physical address on the PID website is the same physical address for each individual PID, the main building address.

The higher grade locks have better mechanical strength, so they last longer and they hold up to more physical force.

Math, Psychology, English, Law, Physics (as it applies to such things as structures, etc.)As a boost to general life skills add logic and history.

As far as rent I would just make everyone pay electronically that way there is no need to physically collect rent and you can avoid those situations. 

There are fees associated with all of these filings as well as paperwork that you need to provide before the filings can be completed, so contacting their office ahead of time will save you a ton of headaches.On your lockout date, the sheriff will come to the property, post the eviction notice, allow you to change the locks, and facilitate the physical removal of the tenant if that is needed. 

It could be that there is something physically wrong with the property or it has a clouded title.  

Physically seeing and being there in that moment sets that memory in better than any book or youtube video.So if someone is around the Harrisburg area and wants a free cup of coffee lol... hit me up when you have a moment.

After 30 days passed you then have to file an eviction case then you have to win then you have to have them evicted and if after they have been physically removed they come back, now they are a trespasser. 

Ask them for their businesses and for their referrals, and then stay in touch with regularly touch campaign of calls/emails/physical mail.Beyond that, I suggest being purposeful (not spammy) on Social Media.