However, if my old college friends want to live with me and help with the mortgage I thought it to be a great house hacking scenario.

Hope this helps get you started! 

Normally the tenants understand.If you're having consistent issues with a tenant abusing the HVAC only (if they are abusing other items then it may be helpful to find a new tenant), I know some HVAC companies offer an annual plan with a certain number of visits per year at a flat fee.

BP has various tools to help you analyze your deals (rentals, flips, wholesale, etc). : https://www.biggerpockets.com/investment-calculators7.

Neither party wants that.I've helped out a handful of people that found me on the platform and heard a variety of unique and exciting stories from real investors that need some help with their situation.

@Michael Plaks, information on the link you sent was very helpful but as you said, I can't get a clear picture what I need to do on my tax.

Electric, gas - Where I am at you can link multiple properties to one account this helps if you aren't doing that.

Hope this helps!

You may want to check out soe of the legal self help books by NOLO Press.

These three cities from the rental income of $3,000-$4,000 list were on my list of markets to check out and helped validate my research even more:#20 Richmond, Virginia: Airbnb rental income $3,247#32 Round Rock, Texas: Airbnb rental income $3,418#53 Henderson, Nevada: Airbnb rental income $3,909It is broken up by rental income segments ($2,000-$3,000; $3,000-$4,000, etc.), so some numbers overlap, but there are some excellent data points to consider.