And keep learning new strategies and techniques.

My best recommendation here is to get with other investors in your market and ask them what techniques and companies they are using for foundation work.  

Even without these characteristics, in the early days of Auben we tried to copy the multifamily showing techniques and design a personalized resident viewing experience.Prior to the invention of electronic self-showing lockboxes, we scheduled and arranged personal tours of our homes in a very analog process.

This is a very advanced technique and if your financial company allows this make sure you speak to them about the risk of your holdings/loan being called if you go this route.Also, keep in mind that if that 2nd loan is paid by your savings account, your checking account, a HELOC, another loan...it still means you are net negative on that property. 

Check out this post from Brandon Turner about another technique to this: https://www.biggerpockets.com/...

@AnnMarie Bacchus there are TONS of resources and different techniques in finding off market properties.  

One thing I've learned is stick with one technique until you master it before you move onto something new.

You can track your results on mailings, and further regime your technique.

If that's the case, what are some of the screening techniques I can use to have a warmer and fuzzier feeling that they will pay me every month.  

A lot of condos here in Las Vegas run into trouble with financing because the owner occupancy for the community is < 50%, but generally speaking the bank should tell you precisely why.If you don't want to put any cash down, you can research creative financing techniques here on BP, but the more creative the solution, the less appealing it is (generally speaking) and is a tough sell in a hot market.