CoCR % , CAP metric for deal analysis

[Babu Rao]

Hi All

Sorry but I am a new investor , trying to get started in Multi family investing. 

1)While analysing a deal , does Cash on cash return matter a lot , does the deal need to have a COCR return of 10% or more for a stable positive cash flow? ,

2) Does buyer CAP rate of 6.67% for south Jersey , Bucks county PA is more reasonable?

thanks

babu