Somewhere around 25, as freshly graduated bachelor's or master's degree graduates with well-paying jobs after interning and finishing their first years on the job, they truly enter the dating scene as adults with good jobs and strong prospects.

Stop being a responsible adult early enough that you can come hang out at the next meet-up!

As an investor, you need to break out the wikipedia, inspectorpedia, bricks and mortar library and educate yourself about building materials, repairs,etc or especially as a female you will get fleeced.

Now our driver was to have a student rental for our daughter, but I think the model worked fairly well, other than we had a few other criteria that a female college student who was also our daughter required.

Next door neighbor was making inappropriate comments at our female tenants.  

Contact the police or an adult protective services agency in her area to do a welfare check on her. 

Maybe have a discussion that you are afraid she can't afford the rent, and you are considering giving her notice because of this (this nips off the "I'm a bit short" excuses)  along what would be necessary for you to be comfortable allowing her to remain as a tenant (catch up on the behind rent, maybe over 3 months period  AND all occupants PASS background check) . 2-3 working adults SHOULD be able to come up with the rent -- I don't imagine that you are gouging anyone.It is possible that if there is a wide open door in front (no 30 notice required if you move in the next 45 days!)

One of our neighbors has a house that is supposed to sleep no more than four adults,  but twice this summer there were 18 to 20 kids in the house and it was booked through Airbnb.

I don't think section 8 pays for adult children ???

I’m a 28 y/o female who just finished a owner occupied renovation using an FHA 203k renovation loan.