[@Lugubrious]
Damn, no edgy emo teenager to do deals with xP 

That being said, the next obvious question is: Could Player Characters do it? Like Blair or Lily? Both seem to be in the "Intelligence" department of Hell (Sorry Fenn). DMC wiki does state that only certain powerful demons can take on human forms, and since both Blair and Lily have human forms... Is it the same minimum requirement, so to speak, or does the "Demon Contract" require a more powerful demon than even that?