.* You are missing general expenses such as legal, accounting, office supplies, software, etc.  

And since I buy in quality neighborhoods with a long history of strong demand, limited supply, and therefore rent increases, my cash flow per unit tends to go something like $100/mo first year, $200/mo second year, $320/mo third year, $450/mo forth year ... as opposed to being cheap and buying in less desirable neighborhoods where the cash flow goes $300/mo first year, $300/mo second year, $300/mo third year ... you are actually losing purchasing power in this case after factoring inflation.

One that is well known and has a large supply of employees, vehicles and assets.

Keep in mind the additional costs typically associated with short-term rentals - cleaning fees, supplies, furnishings, utilities, any short-term license fees in your local market, etc. 

I work nights at ThermoFisher Scientific as a Technician 2, as well as I am also into bodybuilding and powerlifting sports.

Here are the numbers:Current value: $195,000Mortgage balance: $150,000P&I, taxes, insurance, HOA: $1,050/monthRental income: $1,600/month + 2% annual increaseAverage maintenance spending over 8 years: $100/monthLocal appreciation rate: 1.5%, very stableThe location is near a large university and hospital so there is a plentiful supply of responsible tenants (graduate students, residents, etc.).  

There was a three-month supply of homes in the area.

This contractor has all the supplies and does like three different model houses. 

@Eric Anzelone You may want to visit your local mobile home supply store.

I always assumed better flooring and other supplies would add to the overall value but the more I look into this it seems they are just comping square footage to comparable homes, bathrooms, rooms in home and not so much focused on what is actually done to the home itself.