How do I even see James Island listings that are in a brokerage's private exclusive network?

Private exclusive listings on James Island exist outside the CHS Regional MLS, so seeing them usually requires a buyer's agent with relationships across multiple brokerages, since no single firm shares its full pocket listing inventory publicly. Brian's network includes agents at competing brokerages specifically for this reason. Most buyers still find their best options through full MLS exposure, since private networks represent a small slice of total inventory.