Final answer:
The document used for transferring interest in land in BC is a deed, which is vital for farmers selling their land for development.
Step-by-step explanation:
The document used to transfer an interest in land from one party to another in British Columbia, apart from title registration, is a deed. A deed is a legal document that indicates the transfer of property ownership. When farmers confront the economic challenges of farming, they might choose to sell their farmland for the development of commercial or residential projects. To ensure a legal sale, the property's title should be clear and accurate. The dimensions of the farm would be assessed to calculate the precise acreage, which is critical information in a real estate conveyance facilitated by a deed.