What to ask seller for when looking at properties?

[Jeff D.]

I'm headed to Ohio later this week to look at several multifamily properties for sale as part of a package deal. These will be the first properties I've purchased and I want to make sure I'm asking the right questions before I write an offer. 

I've asked the seller for the rental history (has owned 20+ years) and the repair/ maintenance history. Is there anything else I should be asking for before I make a decision?

Thanks in advance!