If the parties mortgage the real estate in their own name, they should first negotiate with the company, sign an agreement on personal private property, and go through notarization. In this way, even if I can't get a loan for my personal property mortgage, I will go directly to the company instead of looking for someone. If an individual signs a similar agreement with the company, the original must be one for each person and notarized at the local notary office. Otherwise, if the company has a lot of troubles in the future, the law can't help you.