A family is seeking advice after a buyer, who paid 50% for a plot of land five years ago and failed to pay the remainder, is now demanding the full amount plus interest following the father's passing. The consensus from legal advice suggests the claim may be time-barred, meaning the buyer's right to enforce the sale or demand repayment has expired. It's recommended to consult a local lawyer with all documentation to confirm this position and understand the best course of action, which might include forfeiting the initial payment.