Deal analysis on mixed used building

[Andy Li]

I'm looking at a property in NJ that has 4 retail storefronts and 3 apartments upstairs. the seller is offering eller financing at a low undetermined rate (should be sub 3%) . however it does have one vacancy so thats what Im worried about. sale price: 450k 125k down 325k 10 year mortgage current rent roll with 1 commercial vacany: 67500 current expenses including taxes: 24000 current noi after mortgage payments: 11000 each tenant is around 1k+/- thanks in advance guys! long time lurker 2nd time poster!