Contact Davis Business Law for a lawyer to buy or sell your business in Dallas, TX. From mergers to asset purchases, we've got you covered. Are you considering purchasing a business in the Dallas, Texas (TX) area?Murphy Business of Dallas can help you complete a successful transaction. To discuss your sale or purchase agreement with a knowledgeable business attorney, call our law firm in Dallas, Texas, at 972-744-0445. Browse 218 Dallas, TX business opportunities available on BizBuySell. Although large and complex enterprises may take longer. Once an offer is received, it generally takes around 4 to 8 weeks to complete the sale process. Before you buy an existing business, find out if the business owes any Texas taxes.