List of markets currently under review for a potential reclassification as part of the 2017 Annual Market Classification Review: - China A-shares (from Standalone to Emerging Markets) - more info. - Argentina (from Frontier Markets to Emerging Markets) - more info.
It does seem counter-intuitive for a landlord to request that a long term rent-controlled tenant continue to sign a new lease, but counter-intuitive for landlords can be beneficial for tenants. You are protected from nasty rent increases, OMI notices or Ellis notices that become effective before the end of your lease.
Signing a lease agreement with your tenant will help ensure that the process goes smoothly, and give you legal recourse if it doesn't. A lease should be written in clear, straightforward language and include payment terms, rules the tenant must follow, and details on what will happen if either party breaks the agreement. You can start with a standard lease and alter it to fit your individual needs and adhere to the laws in your jurisdiction.