Rent rolls, deposit reconciliations, venders, event tenant notes, key operational details..

You can jump on the Mobile Home Park University forum  and search for key words.  

Scott Carder You need to, remediation is key, it will not only affect the drywall, it goes to the studs, plumbing, electrical, vents, etc.

Also look at the key industries, is it  diversified, and are they stable?  

They expected me to cut them a check for their security deposit when I came to pick up keys, NO WAY, I kept it ALL, I even waited till the last day to send them their notice/statement regarding their outstanding balance for damages, lol!

I like using the key word notifications, and recommend you set them up. 

Credit is the key to everything pretty much.

You'll need to decide if you want to buy turn key where everything is all done for you or if you want to do the rehab yourself.

For example, you set up key word alerts. http://www.biggerpockets.com/alerts

Peak Capital(Jeff Danley and friends) has purchased over 6000 units in the last few years based and a few key value add opportunities.