A seller accepts an offer from a buyer subject to the following: 80% financing, home inspection, closing on or before October 1, approval of an attorney on marketable title, and possession within 30 days of closing with a daily rental amount from closing to possession. This is an example of

A unilateral contract involves a promise made by one party in exchange for an act by another party, where only one party is bound to fulfill their obligation. In this case, both parties have conditions to meet, indicating a bilateral agreement rather than a unilateral one, as both the seller and buyer are bound by specific contingencies.

While the buyer's approval is relevant, the offer is not solely contingent upon the buyer's approval. The seller has also imposed conditions that must be satisfied, making it a collective agreement rather than an offer strictly dependent on the buyer's consent.

Although the seller's approval of the marketable title is one component, the overall contract is not just about the seller's approval. The multiple contingencies that involve both parties highlight that both need to fulfill certain conditions, which goes beyond simply requiring the seller's consent.