There is a vast (unlimited) amount of abundance in the world we should position ourselves to enjoy it.  

With a $10MM windfall, we put a vast majority towards passive investments with a diversified group of experienced syndicator partners.

I'm assuming that you stopped actually screening people years ago since your experience is so "vast" and you have been through every situation imaginable.

I volunteer my time at my local rec council and a community group, I expect to get paid when I help someone buy or sell a house.That said, the vast majority of the time the seller is covering the full 2.5% commission, so my buyer clients generally don't owe me anything more than a $495 admin fee - a pretty small price to pay for the services I provide IMO.If the seller is not offering at least 2.5%, then I will notify my client of that before writing the offer so that they can factor in the additional commission into their closing cost calculations and into their offer. 

The vast majority of housing needs are already covered elsewhere.As for Matt's comments on 250SF being non-permanent space even if well designed, I'd agree.  

Acquiring as much knowledge as possible regarding the in's and out's of investing within a real estate market and to build a vast network / connections.

Ultimately, a few tenants will benefit and the vast majority of them will be hurt.

The vast majority of subdivisions won't allow it.

In fact, they are all vastly different.

no way to really answer this until we know what state or counties you want to do these developments in.Each state and County can be vastly different and as such change the metrics of that whole laundry list of questions you asked.