We can easily determine the additional cost of electricity, gas, water usage, and consumables (paper towels, laundry detergent, cleaning products, etc.). 

Also, check minimum lot size and street frontage as you may need to carve the mobile home park out of the existing lot versus pile onto the existing lot, so if you are trying to preserve the existing structure, you may lose some lots considering setback requirements and access.Your local government may require public water and sewer for a new mobile home park, so be sure to check the requirements and distance to the nearest connections.

He acknowledged but went back to using water and packing it with his bobcat later that day.I also told him we believed the property line is not where the wood fence is but rather 15 ft out and that we were going to get the property lines surveyed.

I found a 20 acre plat of land that has utilities like water , sewer and electric off of a city maintained road.

Vinyl plank floors, paint, refinishing hardwoods, new hot water tanks, etcc.

@Jessica Seppo, Not to muddy the waters on you even more but.....You can actually take advantage of both the sec 121 exclusion and take up to the first $500K in gain tax free. 

I am thinking (and correct me if I am wrong) since I rent the rooms I should include the following: (excluidng the mortage, insurance, and taxes)- water-electricty-WIFI- TV cable- secruity footage

Ideally, land has easy access to water, sewer, electricity, but not a hard requirement.

I have worked with structural engineers on fire guts, handled mold remediation, and repaired water damaged properties.

My three issues with the house are, one the roof needs to be replaced (it’s 15-20 years old and has moss growing all over it), second issue is the eaves troughs are overflowing with leaves and stuff (if this has been a standard practice over the 50 years they owned it this is a bit of a concern with water likely running right down to the foundation of an already old house, the third issue is the tax assessed value is 37k so if I buy it for 160k won’t the tax assessed value go to around 80k meaning my tax is going to double roughly?