Lots of time, effort, and gas spent for no reason and if that investor does close, it's balanced out by the deals that didn't close so the Realtor earned less than minimum wage working for that investor. 

Two summers ago my town build an auxilliary gas fired backup power generation facility. 

Gas and electricity?

.- drivers license- bills (gas/hydro)Of course I would have to move in to this property as well. 

Of course, it is just another deductible business expense as is office supplies, gas, or any other admin cost. 

You also need to check with the utility companies and get cost estimates from them for availability, fees, hookup charges, transformer and power line/power pole locations or relocation requirements, water, sewer,gas, cable etcYou will need ball park cost estimates from site work contractors for site work, roads, installation of utility lines etc.

Since then been making 6 figures plus (as a Finance manager) and my monthly liabilities are about 4K before food, gas etc.

As a licensed builder, former property manager and an investor if I have to worry about unemployment and liability insurance, cost of my company vehicle which has higher liability coverage than a regular vehicle, administrative costs, gas, fronting the bill and potentially not having a customer pay me and also all the time spent providing free quotes or waiting around to get a yes or no from client.

Start with the potential gross income and work backwards from there.Check with the city or county planning and zoning department to get an idea of what you can build and what is required for all approvals including site plan and building permits, proffers, water/sewer tap fees, bonding requirements, inspections and CO process and time frame for all approvals.You also need to check with the utility companies and get an idea of availability and cost estimates from them for water, sewer, power, gas, cable, installation and connection requirements, tap fees, hookup charges, transformer location and relocation, power line and power pole relocation issues.

Nobody who's shelling out a $2000/month in mortgage/rental costs and $650/month for their car payment/gas/insurance is going to get rich cutting out their occasional pumpkin-spice lattes.