If you are referring to expense categories, why not use the ones the IRS requires when reporting rental income!  

I'm using classes in Quickbooks to keep track of my properties but how do I classify the expenses for the property we didn't buy?

Anyway I'm making right around 550 a months after expenses, in the mean time I was working in a restaurant that I opened with my friends, I owns about 30% of the restaurant and I make right around 8000 a months from revenue and salary, I was working around 70 hours a week.

Hi- I have a 2 part question about covering hotel expenses when the a/c isn adequate and how I can get a tenant to leave if I have a 3 year lease agreement with them.

You might also consider your holding costs and legal expenses, then decide it is easier to offer an incentive to move out by X date in exchange for a handful of $100 bills upon handing over the keys to a broom clean property. 

Henderson and Summerlin are the best and most expensive areas.

Look at the market, if an investor or homeowner bought this, will they collect enough in rent to cover the expenses they have ?

i live in long island, new york and it is notoriously expensive, even the cheapest of areas could still run around 160,000.

This is most likely higher than it will cost, as a good plumber will be in and out with that in less than a day, and his parts and material wouldn't be terribly expensive.

Question: all home expenses are paid by me personally.