Find 386 flexible and convenient short-term apartments for rent in Riverside. If you are the property owner, the term of the lease is up to you.Month to month, 6 months with a renewal, 12 months, etc. The ideal time to sign a new lease is about a month before your movein date. Specifically, experts say the best time to sign is 20 to 24 days before moving in. A California lease agreement allows a landlord of residential or commercial property to write a legally binding rental contract with a tenant. You can do either, but a written lease is always better. You should contact an attorney in your area - having one on a retainer for help will be beneficial. Tenants are responsible for: Paying rent on time and as specified in the rental agreement. Out of 100 WalkScore® Rating.