The deck ledger of this home was completely deteriorated.  Amazingly, the ledger installed wasn’t pressure treated or bolted to the home.  Because the most common point of failure for deck systems is at the ledger, e.g., where the deck abuts the home, this is a definite safety issue.  I recommended further evaluation and repair by a qualified contractor.  This was discovered at a home inspection in Anacortes on Fidalgo Island.