I think the big question is how much additional supply will come up to meet that demand over the next few years. 

Here are some additional tax incentives that you may find helpful:Best Tax Strategies for Real Estate Investors (biggerpockets.com)

These are professionals with additional training and a stricter code of ethics.

Additionally, BP has an entire post on the 78 Essential Questions to ask a PM.2) If you're going to do this yourself.It is not rocket science.

Additionally, if we open a LLC to manage our own properties, do I need to hold a broker's license in KY to do this legally? 

In addition to some of the great advice above, I would put some serious work into your personal household budget and building up a substantial (6 month) emergency reserve fund.

The important points often glossed over are (1) is the buyer providing their personal guarantee to the seller for the note (2) is the seller maintaining a wrap position so they can foreclose in the event of default and gain ownership (3) is the buyer putting up additional collateral (4) how large is the down payment (5) what is the LTV (6) is this a personal residence for the seller or investment property (7) will the property cash flow and if so what will the cash flow be (8) is the property in a increasing, declining, or stabilized area (9) is the property being sold at market value, or above market value because of the low interest rate of the existing mortgage and (10) how experienced and what is the track record of the buyer, and is the buyer purchasing a property for investment or to live in or otherwise use.  

.), the location, depth, and capacity of utilities to service the site - including public utilities (sanitary, storm and water services), franchised utilities (power, gas, cable), capacity of the local streets to accommodate additional traffic from your development...Be sure to find out if there are any specific local ordinances you need to satisfy (possible tree & wetland surveys, together with any necessary tree & landscape or wetland mitigation plans) and whether there are any concerns from municipal departments (e.g. hydrant locations from the fire department, storm inlet and retention requirements, as well as asphalt / concrete road requirements from the engineer), entrance requirements from the road commission (left turn and passing lanes at the site entrance), etc.Once you get past all this you can finally prepare a preliminary site plan and enter the political arena to get preliminary site plan approval, and to address any concessions the board and neighbors want from you to overcome their objections to your development.

I was told by an associate of mine that they were charged an additional $15,000 at closing due to a "title fee" on top of the ones you listed.

An additional question about Tax deeds.