[Calc Review] Help me analyze this deal - Omaha

Hey Dave, 

I am new to the forum, but just wanted to chime in.  We have been purchasing a few smaller multifamily buildings this year, mainly duplexes.  When we underwrite a deal, we typically use the following:  7% vacancy, 15% repairs, and 10% management.   Just wanted to throw that out there, not sure how others structure their deals, but typically that is how we figure.  Hope that helps.