Please help me take a look at this deal (3 rent scenarios)

[Xiao Xiao]

I'm looking for help to assess a single family 3b2b home as investment property (built at 1900, renovated 2017).

The asking price is 139900, For monthly rent I'm analyzing 3 scenarios: based on what I see on zillow the typical rent for 3b2b with good condition is mostly $1450-$1500, with some asking $1700, so I ran 3 reports with $1200 (worst), $1450 (expect), $1600(optimistic) scenarios.

I assume repart,capEx,vacant 10% each, and management fee 11%.

Are the assumptions reasonable? Any suggestions about the property being an investment option? Am I exploiting myself if I take the asking price, or it would be a better idea just to bid low first and see if the deal can be more attractive?

Thanks.