Second-hand housing must find a guarantee company?

Hello, the intermediary service of real estate agency is the service completed after the buyer entrusts, such as housing matching, intermediary, bargaining, and finally signing a tripartite intermediary contract. Now we need to handle the loan, tax payment, transfer, mortgage registration and other related matters, and we need a professional follow-up service organization, so we need to find a professional guarantee company to help ensure the smooth transaction process. I hope I can help you.