Some apartments are open to "corporate" housing.#5  Airbnb -  Do NOT mention "airbnb".   

There's lots of opportunities in developing neighborhoods, but also seems a bit saturated at the moment.Also, definitely budget security (remote control cameras, alarm system, etc.) for your properties, as there are a lot of people who occupy themselves by breaking into houses and stealing anything they can sell.Lastly, there are a ton of contractors looking for a quick buck.

House Hacking is a good route to get started. 

If I was to trade a $300k house for a $310k house that will cost me $10k and $347/month what amount should I ask for to make up for these losses?

If you're purchasing a single family home you can use traditional financing like you probably did on your house or you can do a commercial loan.

I made tons of mistakes on my second house hack and I still came out ahead.

This has also allowed us to provide some excellent incentives for our investors, locking in long term debt currently at 3.75%  through our in house financing program.

If I owe $350k mortgage and I take out $100,000 HELOC and spend it on say a 6 month CD,And then I sell the house for $700kI would only have $250k profit right?

Is he just looking to have no house payment?  

Would add Sub 2 & Out of State House Flips.