Section 8 tenant lease is up. Has not been paying her portion of the rent because it was increased. Landlord serve 90 day notice to terminate lease. Tenant does not move out and states he will pay so the landlord tries to work things out with tenant. Tenant does not pay and it is now 120 days since the notice. Does the landlord have to serve a new notice to terminate or is the 90 day notice still valid? Can the landlord serve a 3 day notice to pay or quit now if a new notice is needed?