Blind offer on 6 unit apartment ?

[Rich Thomas]

Hello all, My agent recently brought me an off market deal for a 6 unit apartment house. My agent is telling me we need to make an offer on the property before we can get in to look at it...is this typical and or exceptable on the commercial side of real estate? How can I make an offer on a property that I havent even seen inside of yet? I was provided some numbers from the sellers agent on rent roll but I feel like they are off and not correct... Any and all info is appreciated. Thanks Rich