The present disclosure relates to a system that facilitates real estate transactions by preventing listing agents from eliminating standing offers. In one embodiment, the system comprises a non-transitory computer-readable storage device including instructions, which when executed by a processor of the computing device, cause the computing device to receive selling information of a real estate from a seller or the seller' s agent from a website or a mobile application, display the selling information to the plurality of users who enter search information that matches the real estate via the website or the mobile application, receive an offer from a buyer or the buyer' s agent via the website or the mobile application, send a notification to the seller and seller' s agent instantly and simultaneously about the offer through the website or the mobile application or both, and receive acceptance for the offer or a counteroffer from the seller or seller' s agent or buyer and buyer' s agent.