How often is an apartment management required to replace old carpeting for tenants? And does an apartment management who has decided not to renew a lease, tell a potential apartment management that they did not want to renew the lease?

A tenant implies it is a rental situation, in that case the property owner is responsible for all costs for the maintenance and upkeep of the property. That being said, commercial grade carpet can last 5-10 years. If the carpet is damaged by the tenant, it may be up to the tenant to either replace it (with the owners concent) or pay the owner the cost to have to replace. As for your renew question. If I understand your question, upon not renewing a contact, you, unless stated in your contract have until the end of that contract. Meaning if your contract renews in July, and you dont want to stay, you have until July to leave. In most cases owners are willing to provide you with a month to month agreement until you can move. If you are leasing, this is different then renting as in you may be responsibly for repairs, depending on how the contract is written.

For the carpet should be replaced when it's needed usually every 5-10 years. As far as for the lease it's up to the tenant and management on the renewal

A tenant buys his own carpet and replaces it .