Hi Anna,
The repair/maintenance monthly average depends greatly upon the construction and condition. If there is a significant amount of deferred maintenance (roof, utilities, windows, carpet, appliances, plumbing, fixtures, etc), then the repair maintenance budget can sky rocket. Look closely at the condition, and be REALISTIC with what needs attention and what may potentially break. Inspection reports will detail all of this but will cost several $100 for multi-unit, if you rely upon inspector evaluation and you're not able to scope these on your own.
Also, the $572/mo expense for the summarized items may or may not be accurate. Reviewing the sellers books (expense report with invoices) should prove them out. If the seller states they aren't available, it's a warning sign. It indicates the seller is not organized and doesn't keep good records, or is a poor manager. The figure might be "made up" in that case.
All in all, the bottom line shows an annual ROI (return on investment) of approxmiately 10%:
Annual Profit: $4200 ($350 x 12)
Cost to close: $42,800
ROI - $4200 / $42,8000 = 9.8%
That's not all that attractive for what I would consider fairly risky - multi-tenant is higher risk than single fam, in my opinion. I suggest looking for 15% ROI in first year, or higher.
Good Luck,
Glenn