Jessica, is this the crazy tenant from the water leak situation or a new one? 

@Josiah McGinnisThat would be incredibly foolish to permit that unless maybe If the guy was a plumber and you have known him for many years .If that toilet is not sealed it will cause a leak and could rot out the subfloor or worse-flood the house .

Gas, electric, water, garbage all paid by tenants who are all month to month.

I'd like to get some a second opinion but I don't know where to start.We converted from oil to gas when we bought it in early 2015.

We don't really have a check list that we follow, however these are the things we look for when we do complete an inspection:- Smoke and Carbon detectors are operational- No apparent leaks when running faucets and toilets.

Detailed annual expenses include:  vacancy rates, specific tax rate, 10% for property management, liability insurance, sewer, electric and gas, snow and lawn care.   

Detailed annual expenses include: vacancy rates, specific tax rate, 10% for property management, liability insurance, sewer, electric and gas, snow and lawn care.

Originally posted by @Ava G.:As

@Justin Heitter, you can see actual electric/gas costs for an address here: https://www.myavista.com/your-account/moving/high-...WSG should average $65-75/month/door.Management will probably average 8%, depending on your manager.

Consider property taxes, utilities traditionally paid by the owner in that area (water, trash, electric, gas, ...), repairs, maintenance and landscaping, costs to service the loan, etc.If your friend would become your tenant, would you be willing to raise the rent on her?