Doorking makes a good product and has models that will allow for keyfob access instead of keys.

Discrimination laws help EVERYONE, because people will sometimes discriminate against their bests interests, Like your fellow investor imo.I would suggest to use the tried-and-true model of most property owners = rent to the best candidate regardless of age, sex, color, religion, etc.

How do I get back possession of the property?

There's a company called the Guild here in Austin that does a similar business model.

The first thing the judge asked her was what’s your address and spit out her new address so the judge said the landlord can take rightful possession of the property.

So I have constructed what I hope to be a sound business model that may be a solution.

I use the Zoho CRM, which I have customized to fit the real estate business model to track everything.  

I buy the cheapest model Home Depot or Lowes sells.  

I use a model that is based on expenses/unit/year.The categories are basically:InsuranceTaxesmaintenance costsadvertisingmanagementsalariesturnoveradministrative overheadutilitiesContract services (landscaping and such)You can bucket them however you want but you should have all of these in the calculation. 

You should be asking WHERE to find Investors, other than that the only quality I'm unsure you possess is charisma.