Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

This is basically you paying into a bond that will pay damage and lost rents if you are unable to the landlord but this isn't a collective of money pooled together for the common good. 

You typically need to send them to a collection agency or attorney.

If it's 50/50, then you both collect 50% of the capital gains and you pay taxes on your share.

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560, little to no good tradelines, lots of collections & chargeoffs, recent evictions.

The Holding company will be the "Member/Owner" of the 3 LLCs (2 property holding LLCs, and the new Property Management Company LLC).The purpose for this then would be that I would really only need to manage "books" on the property Management LLC, and because the Holding company was the owner of all 3 of these LLCs, I could use the property Management LLC to pay all of the bills, collect the rent, maintenance etc. 

Automating rent collection is another smart move, it reduces headaches and ensures timely payments.For future growth, having access to financing options will be crucial.

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

But I'm finding many warnings from your collective postings here on BiggerPockets.

Also, even though you may have to return the full deposit due to a technicality, you should still be able to put them in collections and/or seek a judgement.Honestly, I would try to find a win/win.