Schedule C of the Title Commitment

Schedule C of the title commitment contains any items which must be resolved before the seller can transfer title to the buyer.  

Items commonly found in schedule C include existing liens (current mortgage), judgments,  tax liens, Mechanic's and material man liens, marital status issues, the grantor might even be asked to prove who they are if they have a very common name.  

Basically all items in Schedule C must be addressed.