You're ready to move. The boxes are taped. The utility transfers are scheduled. The lender payoff is lined up. Then the call comes in from your agent or closing coordinator. The buyer is backing out, or the seller can't deliver title, or the deal that looked finished in Miami-Dade or Broward is suddenly collapsing a few days before closing. That isn't just a bad surprise. It may be a breach of contract in real estate. For homeowners in South Florida, the problem is rarely just legal. It's…