Hi Obed, welcome to Bigger Pockets!
Based on what I see on the report, you seem to be low with vacancy, capex, repairs, and management. What year was this built? Has anything been updated within the past few years? Looks relatively new(ish) from the picture but either way I think 5% on CapEx is low. I suppose 5% on repairs could be okay but it depends on the condition of the property and the type of tenants you'll have in that area.
For management, usually I will put at least 10% in my analysis (especially for a duplex) as any property management company will typically charge a placement fee (usually 1 month rent) when they place a tenant in the unit. So with $120(12) = $1440/year which won't be enough for 2 units if you have to replace both sides. Even if you plan to self manage, always include the management fees in your analysis so you don't get stuck in a situation where you have to self manage in order for the deal to work. You never know if you'll still want to manage it in 2-3+ years.
Will you have any other expenses? Any utilities? Water/garbage/sewer? What about lawn care? All things to consider.
Also I see that your ARV is less than your total project cost? If that is the case, then cancel everything I just said because it's definitely NOT a good deal.
Do you plan to owner occupy the property?
