What documents to ask for before buying property

[Zach Shrader]

Hello all, I'm looking at an 11 unit multi family in the Ohio area. 9 units are 2 bed 1-1/2 bath and 2 units are 2 bed 1 bath. I know there's some obvious things I need to ask for like the rents and stuff. But should there be any documentation on like expenses and profits and losses or anything else anyone can thank of??