There are markets that are emerging and depending upon the target home price and tenant prospect, there are several sub-markets that have significant opportunity. 

And keep the rest of the cash for 1 more rental, our self, for emergency funds, and too spend some wisely ?

If something did come up we have other methods to come up with the cash if necessary as our other cash on hand is for personal emergencies if necessary.

We must have the ability to access the property; with prior notes, in case of an emergency or maintenance issue.

One thought is loan payoff, but keeping home equity in reserve for emergencies.

In terms of the books recommendations, here're just a few: "The ABC of RE investing" by Ken McKelroy, David Lindahl on emerging markets, Steve Berges on buying and selling apartment buildings. 

@David Des call the non-emergency number of the police department. 

I manage my own properties and I have a maintenance man who takes all the emergency calls.

In some research the closest match is Chase.The big hitches missing with what I have is emergencies that can only be solved at a local branch, and the ability to move money online from one business bank account to another at different bank.

Save three to six months in cold cash reserve for emergencies.