I would let the tenant know that he is not authorized to live there.

It gives instant credibility.

I'm going to go against the grain here- in most, not ALL, cases, credible contractors won't just use the materials you provide.

I'm a newbie tooSelf education through books is a conversation between the author (mentor) and you.You'll gain knowledge, connections etc but it takes timeAttending meetups, listening to Youtube videos on subject matter further broadens knowledge base

If the airport authority would deed the buildings to me, it would cause them to be entered on the tax roll.

In our area, the housing authority does annual inspections to (mostly making sure the landlord is keeping up the units) review the tenant and the landlord. 

Being an agent gives you some immediate credibility when talking to knew people who are leery of being scammed.

Battery Park City Exchange (New York City): The city of New York engaged in a land swap with the Battery Park City Authority, allowing for the creation of a new public school and affordable housing units in exchange for a parcel of land that was then developed into a high-value commercial property. 5.

The more you make it seem like there is easy money, the less credibility you have.

The rules and payment standards vary significantly from one area to another, so familiarizing yourself with the local housing authority's procedures is key.