Thanks for your time and I appreciate any feedback or guidance. 

Small multifamily, up to 4 units (at least to start), then graduate into larger investments as your portfolio performs positively. 

@Timothy Blackman- thanks  ...get some referrals for lenders from friends / co workers ...contact them all on the same day with the same criteria and ask them any questions you have and  ask for some scenarios ...compare the  feedback and service they provide ...pick one lender to get pre approved with ,,once you have a property - contact all lenders again for pricing options for the actual loan you will need ...hopefully the lender you chose for pre approval will be competitive in their pricing ..good luck

I was conflicted on DR's adamant position against leveraged debt, however, having a degree in finance and economics I believed I had well balanced approach.

We manage our showings using Buildium and Tenant Turner, which integrate seamlessly for handling leads, scheduling showings, receiving feedback, etc.

@Derek Lacy - thanks so much for the feedback!

All cash flow positive.

The negative equity position is one reason (there are many reasons) why adding an ADU is one of the worse RE investments.  

Why is the 50% rule so negative while the cash flow is positive?

The fact that you’re CREATIVELY thinking about how to position yourself to add value to a transaction as a “broker” or intermediary is an excellent start.