I would be very surprised if this was accurately done.That means you are cash-flow positive after depreciation of $1,666 per monthIf the return was filed, you may want to pay another accountant to look over the return to see that it was done correctly.Yes, buying another property, given today's condition of high prices and high interest rates would likely decrease your rental taxable income.

The problem I am having is I don't know if I am looking at the right data/charts and if its even accurate.

I have been diligently reading, studying, and beginning to practice analyzing cash flows of properties within Chicago and some Chi suburban areas.While I try to use whatever tools I have at my disposal and also be conservative with my numbers while analyzing properties (vacancy percentage, expenses, etc) I believe that in some areas of my analyses, I may not be getting the most accurate information.For everyone out there, where do you get your rental estimates by location?

I challenge you to find a legitimate source that any of the above statements are not accurate.

Splitting utilities (getting new meters for gas, electric, and water) is pretty expensive and it's difficult to split the fees accurately between tenants. 

For one of my rentals (4bed 3bath, 1850sf w/ pool, todays value around 800kish) my premium is 4,000 a year  Again, it varies depending on so many things so I tell my clients to get quotes for properties they are interested in to really get an accurate idea.  

I will not send them until I see a CD that is accurate. 

Get a good realtor who can provide accurate rental comps.

I'd like to one day find all the deeds on the property going back to 1857 just to get a more accurate picture. 43 years: 4,400% gain (annualized 102%/year)26 years: 144% gain (annualized 5.5%/year)6 years: 47% gain (annualized 7.8%/year)Besides Real Estate where else can you see these kind of gains, tax benefits, and leverage?

I 2nd what Jaron said - we need more information to accurately answer your question.