Legal analysis: it can be collected within a reasonable range and is not illegal. Equivalent to the service charge. There is a handling fee for buying a house and buying a car loan, and it takes time and energy for the other party to provide services.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 465 A lawfully formed contract is protected by law.

A legally established contract is legally binding only on the parties, except as otherwise provided by law.

Article 596 The contents of a sales contract generally include the contract's name, quantity, quality, price, time limit for performance, place and method of performance, packing method, inspection standard and method, settlement method, contract terms and their effects.