In my opinion, you need a standard (eg. no felonies) that is written and followed consistently to avoid fair housing issues. 

I'm fairly new to BP myself.

Fair Housing specifically forbids discriminating against "familial status" which includes foster children.

They are just playing with fire, really, but it happens everywhere.

You as the buyer also have rights under fair lending and you should never be forced to use a builders lender. 90% of the time lenders drop the ball and end up not being able to close on time or their overlays cost the buyer the deal and in some cases earnest money.I would walk away from a deal that forces you to put $50K in earnest and use some generic lender who may not even be able to close the deal.

Even though we have good LL-T statutes in place in Florida, some judges play loose with them.

Donate the Property: Donating the property to a qualified charitable organization can provide you with a charitable deduction equal to the property’s fair market value and eliminate capital gains taxes.Implementing these strategies requires careful planning and consideration of your specific financial situation.

Ask them if $500 would be fair enough for a day or few hours of education. 

Tenants will play games:1) Leave a minor home alone - no one should enter!

I think the play would be buying a property that needs some rehab and you can split off a new lot due to new lot sizes and setbacks.