Possible Clues:

• Called before finishing journalist's legal document
• Act on name of book indicating the owner
• ... deleted by mistake after note; here's another document
• Landholder's holding
• It will prove ownership of river in named setting
• It's proved right -- 'They Do It With Mirrors'? ...
• Home owner's document
• Deleted it (anag.)
• Monopoly card with property info
• Property owner’s document