I'm in charge of selling my friend's collection. Take a look and make me a deal.

https://deckbox.org/sets/164511?s=i&o=d

If a card is listed as NM, can we be confident it's actually NM? Even for the old stuff? Or should I ask on a card-by-card basis?

Pretty confident its NM, but I will take pictures for you before each transaction. You can decide what the condition is and make an offer.