You need to subpoena your Section 8 records in your court proceeding. Your subsidy payments to your landlord should not have stopped because you are in court. Your landlord may either not be cashing the subsidy check or returning it to HUD. Because you are still in court, you are still in danger of potential eviction or loss of your subsidy. You should consult an attorney about this matter.
Your LL cannot stop HUD payments. Is your section 8 from NYCHA or DHCR? Did you fail to complete your recertification? Did the apt fail inspection? Are you over income? Did you fail to pay your portion of the rent? You need to contact the payor of your section 8 and have a hearing before the Section 8 payor.