My question is how to apply the 50% rule and cashflow rule properly for analysis.For example, applying the 50% rule on a property that I'm looking at, the cashflow comes in at around $150/unit , a base hit - short of the $200/unit home run.However the CoC is a whopping 20% and the gross rents are around $300 / unit ... which according to the multi webinar I just watched are both in grand slam territory.

The proper goal of charity is not to give (and virtue signal one's giving) but to see that the gift has some beneficial effect.   

If you don’t prepare the surface properly and apply the finish per the manufacture it will peel.  

The fact they are complaining online might be an indication the property manager dealt with them properly so be sure to ask the manager for their side of the story.7.

I would immediately terminate their leases, with proper notice.

Have proper savings.

Any tips for properly running the numbers for both?

It should last a very long time as long as it's properly maintained. 

I have a partner that is willing to co-sign because he has proper paperwork including these pay stubs.

Because if you look at the cash you receive through a refinance as "free money" you are unlikely to treat it properly.