legal ground
Article 703 of the Civil Code
A lease contract is a contract in which the lessor delivers the lease item to the lessee for use and income, and the lessee pays the rent.
Article 704
The contents of the lease contract generally include terms such as name, quantity, purpose, lease term, rent and its payment term and method, lease maintenance, etc.
Chapter seven hundred and seven
If the lease term exceeds six months, it shall be in written form. If the parties fail to determine the lease term in writing, it shall be regarded as an indefinite lease.