Did you need supplemental heat in the dead of winter?  

With a strong vacation area such as this it wouldn't be hard to buy a SFR, and then air bnb extra rooms for supplemental income.

I am currently in a job that I enjoy and plan on staying with for as long as I can but I am looking for the opportunity to earn supplemental income to further enhance my families financial situation.

Even if you are not happy with your current job, seeking another W-2 AFTER CLOSING to supplement the growth of your real estate portfolio may be a very beneficial route!

Of course, those kind of returns are anomalies and not something you should aim for realistically but it's just interesting to know how investors of the calibre got there.

Also, what % do you usually aim for in cash flow compared to the amount of leverage? 

Would you care to expand on what you’re aiming to accomplish?

Tenant complaining the water heater is not large enough, violating the lease by installing supplemental air conditioning, removing interior doors, of which none have been resolved. 

It is rare though as most just do it in between supplementing lease or sales activities with higher returns.So define what path you want and then seek out interviewing with multiple of those brokerages.

If HR1728 is the SAFE Act, I believe the NC implementation is www.ncga.state.nc.us/sessions/2009/bills/house/pdf/h1523v6.pdf The NC Commissioner of Banks (http://www.nccob.org/NCCOB/Mortgage/FAQ/General+Aim+and+Scope+of+NC+SAFE.htm) says:[i]7.