What is the primary purpose of an Agreement of Purchase and Sale (APS) in a real estate transaction?

Option B: To authorize a real estate agent to market and show a property to potential buyers

Option B describes a listing agreement or representation agreement, not an APS. The listing agreement authorizes a real estate agent to market and show property on behalf of the seller. This is a separate contract between the seller and the brokerage, establishing agency relationships and marketing authority. The APS, conversely, is the purchase contract between buyer and seller that occurs after marketing activities have resulted in an offer. These are distinct legal documents serving different purposes in the real estate transaction process.

Option C: To provide a preliminary estimate of closing costs and legal fees for the transaction

Option C describes a cost estimate or statement of adjustments, not the primary purpose of an APS. While an APS may reference some costs like deposits or legal fees, providing cost estimates is not its main function. Cost breakdowns are typically provided separately by lawyers, lenders, or real estate professionals. The APS focuses on creating binding contractual obligations between parties, not estimating transaction expenses. Financial estimates serve an informational purpose, whereas the APS serves a legal contractual purpose.

Option D: To register the buyer's interest in the property with the local land registry office

Option D describes a registration process with land registry offices, which is not the APS's primary purpose. While the APS may eventually lead to title registration upon closing, the agreement itself doesn't register anything with land registry. Registration occurs through separate legal processes involving lawyers and land titles offices. The APS creates contractual rights between parties but doesn't automatically create registered interests in land. Registration is a subsequent step that follows successful completion of the APS terms.