It's a pain to get the cash flow out of quickbooks, though you can get the statement of cash flows and fudge around with it to get the numbers.

The values change block by block almost. 

One has a 3/1 block house that I rent for $1000 a month.

Trying to use H&R Block software but it will not let me enter 0 days rented in the interface so I currently have entered 58 which is the number of days of ownership. 

Down the block on my street is a 6 flat with two legal basements in it. 

I am a do it your self kind of person and currently using H&R Block tax software to prepare my tax documents for this year.

The window its self is fairly new(only 2 years old) and I dont want to have to put the blocks unless I have to.  

The Jersey City challenge is that it is more sprawling than Hoboken, and many blocks are still less than fully desirable due to deferred maintenance, services deficits and weak streetscape planning. $900k does not strike me as near the forever top end of the pricing range for the property you describe if it is Downtown.

Attorneys for tenants can be a pain as they work the system on landlords sometimes.This would be a pass for me but I am not big on office anyways.

Yes, comps show similar properties in the same neighborhood and two blocks away sold for about $170k, except that they are all rock on the outside and this one is just siding.