numbers almost complete on this deal anaylze

Ok 2 family house potential income 1300 month both units rented out

breakdown cost 50k
25% down 12,500
loan 37,500
taxes 3200
insurance 1300-1500

bank of america pre approved me at 40k with taxes on 30 year loan with interest of 5.5% for investment as 370-380
The insurance I figure will make that about 520 a month tops.

I will put away 200 of my cash flow towards maintence every month and plan on screening my tenant for the first floor. I also plan to manage the property myself but have factored in PM costs.

The other expense that the owner pays is the water/sewer bill which last year was 600 so the unit is still occupied by a tenant on a month to month I am having the owner fax over receipts of when rent was paid over the last two years to verify he was on time. How does this deal look?