There is no HOA, and tenants pay utility bills and taxes are about $200/month.

If the house would ordinarily rent for $2,000 a month, that comes to $400 per room but you are probably including utilities, TV, internet, etc.

If not, which utility sells power in the area?

Thanks all, some of the posts above say 50 to 700 per DAY for some of these utilities-- I assume that's supposed to be per MONTH, right?

On one side is the account for rent and the other side I have all the utility/emergency contacts ect.

I am hoping to purchase this home but want to make sure I can utilize this addition before I do. 

For those counting in California (Riverside County at least), we would not be responsible for any utility bills that are unpaid prior to our assuming ownership unless there was a lien placed by the utilities on the title, in which case that would have to be cleared.

Figure out your goals, how you want to utilize REI to accomplish them and utilize your strengths to select which method as there are tons of ways to make money in REI.   

When utilities (maybe just water) gets turned on, city requires an inspection.

We manage a lot of properties for investors that utilize Realtors very successfully