Requesting rent increase with HACC for Section 8

[Sam P.]

I recently purchased a property in Cook County that has a section 8 tenant, which is a first for me. The tenant wants to renew the lease. Currently the rent is fully paid by HACC. How do I request for a rent increase with HACC. I tried contacting the case worker but there is no response. The link in HACC website under FAQs gives a page cannot be found.