We have a steady supply of foreclosures both active foreclosures and new foreclosures coming to market, a large pool of renters and a virtually recession-proof economy fueled by government money.  

I don't think QB sounds like a necessary package for this until I get an office worker to help with the day to day rent receipts and taking/making calls and even then it's mostly just to get some internal controls and "idiot proof" my processes.

But now that my POC (proof of concept is working and have picked up 15 this year, I am looking for other cities as well that fit the same model.

Sure, I'll send proof of funds, no problem.  

You will need to clear any standing water outside and treat it with whatever you can find at the box stores.If it is seriously infested and you have proof that it was caused by them, then go the professional route and make them pay. 

As other have said, keep a record of every conversation with date/time because if it goes forward, you will need proof that you did not ignore and tried. 

4) So there is a hoodlum that is so stupid that he threatens someone via Facebook, simultaneously giving their name and documented proof of their crime?  

As long as they have proof they can afford it financially, or can provide work references.

When on close on this first one, they are going to use 75% of rents - PITI = income (until your taxes are done, usually a full year)So your problem could be your DTI, and lenders may be ok with doing a few before you have proof of concept (full year or two of taxes) but they may be weary doing 5-10 properties in one year.So I would build a relationship with your banker, explain what you want to do, and get them on board from the get go.  

If your local area has the same demand as I see here, you should be able to set your own criteria - Local landlords will not lease for less than 12 months - they require parent co-signers, not a pet deposit, but a non-refundable pet fee - still responsible for any damage done by the animal - If you make your property as bullet proof as possible, there can be a lot of money to be made