Do you view all units of a Multi-Family prior to making an offer?

[Jeremy Anhalt]

I am currently trying to add to my portfolio. I recently put in an offer for a complex after viewing 2 of the 28 units. I had a contingency written in that I would be able to view/inspect all of the units and gave the seller the right to cure. Upon inspection, the units I was shown were not reflective of the property as a whole. Most of the units were in poor condition and needed upgrades. It was a pain in the butt, but I got out of the deal and am supposed to receive my earnest money back. I am now looking at another property and the agent wants me to write an offer after I viewed only 2 units. The agent is saying I would need a licensed inspector to state defects if I want to be able to walk away from a deal. I would like to view all of the units before writing an offer to avoid the need for a licensed inspector. Is that reasonable? What is the normal process?