I think two of the options are to either have the management keep a certain share of the profits or to have the management sign a long term lease for the property, pay the monthly rent, and then keep any profits they earn above that monthly rent.  

The ADB is subsequently drawn lower and lower, assuming your earnings outpace your expenses (which we hope they would). - access equity from real estate that would otherwise be locked up in 30-year termAny ideas/comments/thoughts on this?

A good PM is worthy every penny, and they should be fighting hard to earn more revenue (as they're intrinsically tied to your success). 

Our investors also prefer a model that allows our PM partner to earn sweat equity on the deal.

I sold it for 3x EBITDA (earnings before interest, tax, depreciation, amortization).

Are you going to sign all your hard earned equity away just because you no longer want to have tenants?

The need for housing is enormous, so I know that with the appropriate strategy, we'll earn a lot of money.

You could look into renting by the room, which could potentially earn more than traditional long term.

I believe I could buy a second personal home with a normal mortgage but would they consider the future earnings that it could produce from Airbnb to increase our income to be able to afford it?

*shifting to a shameless self promotion (I've earned it right?)