Starting out and kinda confused

[Quentin Brown]

Just wondering what do yall look for when looking at duplexes.

I saw a duplex that is going for 225k in a decent neighborhood. I havent been to the property yet but it looks fairly well from the pictures. Its 4 sided brick with two new tenants. One signed a year lease this month and the other last month. Both pay close to 1k. The notes say instant cash flow from day 1.

This seem like a great deal but can it be? Why would someone let this go if its making them money?