Seller desires to sell and Buyer desires to purchase certain assets of Seller used in the Business in accordance with the terms and conditions contained herein. The Parties have participated jointly in the negotiation and drafting of this. Agreement.An APA is a legallybinding contract between a buyer and seller that finalizes the terms and conditions of an acquisition. Business asset purchase agreement lawyer. For a consultation with one of our experts in Northern Ireland, call us on 028 8772 2102.