That's like buying a lot to build a gas station, but it's zoned residential currently...but maybe you can get a permit. 

Cleaning is hard work, it takes skill to clean properly, it is not cheap to buy quality products, and gas is definitely not cheap. 

Other groundsLandlord violates tenant’s privacy rights;Landlord wrongfully cuts off water, wastewater, gas or electric service; andLandlord wrongfully changes the locks or prevents tenant from being in the rental property.In all of these cases, it is important to read your lease agreement and negotiate any terms and conditions accordingly.

Gas (natural or propane)I pay $100 a month for liability insurance.

It is required to have a building permit/inspection and hire licensed professionals for Electrical, Mechanical, Plumbing, and structural engineering for load bearing, gas line work, and septic systems. 

Remember that although you’re paying them $36/hour, they have travel time to and from your place, and gas and upkeep on their cars in there too.

Through all of my previous projects I've had W2 income but don't have that for my current project: converting a 1940's gas/service station into a coffee shop and bar.

It will be self managed, I will be near the unit (less than 5 mins away) to clean and take care of any issues.My numbers:Approx Value of Home $240-280kCurrent monthly cost / $860 mo (mortg,ins,tax)Utilities / $250. mo (elec,gas,water,trash,internet)Cost to run as AirbnbApprox monthly cost with STR insurance ($250/mo?)

Two days of your time, $150 in gas, $150 for a hotel?

But the majority of people purchase "average" real estate properties and does not reflect the an increase in HOA, insurance, gas, electric, taxes, management and maintenance.