You can search your local area to establish comps through visiting various short term vacations sites (Verbo and Airbnb).  

Your Lender My suggestion to find #2 & #4 would be to go to the top of this page and click on FIND AN AGENT & FIND A LENDER.

It doesnt have info on tenant status but if that is offered on other platforms it seems like a great option to have.You'll need to cold call and follow up (mailers, calls, visits) with 1,000s of leads for the next year or so before getting a significant # of chances/appointments to convert the leads.

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I like them both, in general, but the best way to find a town to invest in outside of where you live if it's not affordable and if you don't want to be withing driving distance easily (recommended) is to make two lists:1. every town you have ever lived in or visited for more than a month2. every town your closest friends and family live (the ones you like)Then you take those two lists and see where they overlap with the data or lists you are using.

The Home Depot Customer Service call center employee knew nothing about the program and after much wasted time, suggested I visit the Pro Desk at the store.

FB Community Pages?

In CHS, the county assessor has a two page form that you complete and file with the assessor's office, similar to applying for the legal residence exemption. 

I would also suggest you visit the property managers and interview them personally to see what their process looks like and how they update their other clients.

On a recent visit back to Dublin, I started to look more at the rules on airbnb in the Dublin area.