What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

Currently under contract for an investment property with a rate lock in place and agreed 15% down payment due to great credit scores.

@Alexander CameronDon't get sucked into the "just jump in" version of real estate investing...it will be a terrible mistake.

This, of course, is a very insignificant number.So really what I'm looking for is a good company to use that will give great rates for someone with an excellent credit score that would like to put about 20-25% down partially using home equity and will look at projected income of the property that I'm wanting to purchase.

The newer version has a real estate for sale section.

Regarding the rate, I’m seeing 5.125% on 30 year fixed (no pts) and my credit score is 800+.

I started to study the Kansas City market, and although I found the older neighborhoods charming (and dirt cheap), with their small town America feel and huge lots, many of the schools have terrible ratings, with the basic test scores in the pits, and bullying and disrespect for teachers rampant (tho that's pretty standard now). 

So they know what scores and income levels get approved or rejected with each back.

A lot of guys look at the military as a new version of "daddy" so they don't have to think or do for themselves.

After a while you get worn down (I actually got sick for 2 months with a version of Mono) so you need to be smart but time management is a skill most people lack.