Determining Offer Price for 6 Unit Apt with Previous Neg NOI?

[Heather Wilson]

My husband and I are looking to invest in our first multi family property - a 6 unit apartment that is under-managed. I'm stumped trying to determine property value using typical commercial calculations as the property's NOI last year was $ -191. Any suggestions for how to determine property value in order to make an offer that won't put us in the negative when the bank determines loan amount? Thanks!