They have families and are pretty self sufficient in how they find deals, manage their properties, manage their time, etc.

If you need sufficient rainfall - that probably means East Texas, South Texas, or Central Texas.2.

@Brian BurkeYou, me, Jay, and I'm sure many others on BP are in the same boat... have sufficient income coming in, we don't have to buy.  

So, if the current owner's records show the property has produced a 95% occupancy rate over the last 5-years and the market rent is sufficient to support the amount being financed, the lender may not care in the slightest about your personal lack of experience. 

Our underwriting criteria varies on the kind of deal, but for something like this I look carefully at the systems and major costs that you mentioned: Age, style, and type of roofAge of furnace or other heating mechanismsCondition and material of plumbingElectrical panels - what type and is there sufficient loadFoundation conditionOngoing maintenance concerns - trees!

Non-rent controlled.The rent is automatically paid and we increased her rent on her auto payments and she is now claiming that all the previous payments weren't valid.Isn't the letter in regular mail sufficient? 

If one was over 680 that would likely be sufficient at a minimum

Like stated by @Jim Pellerin, the cashflow tends to be better, but on that same token you're now responsible for managing 4 units vs just 1.

Is that sufficient information to calculate all the ratios and acronyms you've been mentioning in your posts?

I'd be cautious, building has most likely not been sufficiently upgraded or maintained.