Tenants Who Lived the Unit for 3 years in Chicago (Chicago Fair Notice Ordinance)

[Kathleen Park]

Hello,

I gave my tenant not renewing notice 80 days before the lease ends, but the tenant quoted below and he could stay with the current rate.  

"According to the Chicago Fair Notice Ordinance, if the tenancy has been for longer than three years, the landlord is required to provide 120 days' written notice before terminating the lease or implementing a rent increase. If the landlord fails to provide the required notice, the tenant has the right to remain in the unit for up to 120 days after the notice is given, with the rental rate remaining the same as previously paid."

When we both signed the contract a year ago, both agreed on 60 days term which I listed on the lease. 

Which one is overpowering Chicago Fair Notice Ordinance or the lease contract?

Thank you for your time in advance.