I have been in the Turnkey niche for a long time and you have to do your homework before buying.  

A family is looking for a 3BR with preferably 2 of more baths to rent in Englewood or Clayton, Ohio, or as close to those two cities as possible.

The location does not really matter; it is more of a personal preference. 

Therefore; to help those wanting to learn, maybe some of you with experience in this niche can share. 

A true win-win.As a real estate broker, my favorite thing to do and my market niche is working with real estate investors.

@Adam AbdullahIt's entirely possible that your father's preference is to stay out of investment real estate.

What you need depends on what niche and strategy that you are going to use. 

Scott The Book on Flipping Houses, The Book on Estimating ReHab Costs http://www.biggerpockets.com/flippingbookYou might consider Niche or Specialized Housing like student housing.

It looks like you have already found your niche, which is great! 

Get familiar with the way the market ebbs and flows, know the local players and make sure you become a household name for your niche if you decide to do this full time.It is my personal opinion that you should be able to figure out if a deal is worth calling the seller's agent after 45 seconds of spreadsheet work, not 13 pages.