The taxing officials realize that there is no one around to protest these sorts of increases, so it is always attractive fruit to pick. 

What sort of info / resources would be most beneficial?

What sort of information are you seeking?

TENANT:  Oh, I wanted to make it a 2-bedroom apartment.ME:  --Biggest facepalm ever-- You need to contact us before you do any sort of modifications to your apartment.TENANT:  Oh, I didn't know that.ME: My manager will contact you on Monday.Needless to say, she probably won't be staying very long...

Lots of questions you need to get sorted out. 

As mentioned above: if you paid some sort of “bribe/incentive” to the seller  you’ll need the receipiant’s social security number and they’ll need to declare the income. 

Or should I open a new LLC that acts as a sort of “property management” that collects the rent from all of my other properties and pays out the expenses?

I guess just sort of general information.

Even then, there not doing too well. eXp thus far is the leader in sorting the most efficient manner of doing it all, at lowest cost.

Going into a house and finding clothing and all sorts of things strewn all about the house in piles on the floor often covered in filth seems to be a normal way of moving.