{"entity":{"id":16621341,"state":"FL","state_id":"A04079","entity_name":"MAT ASSOCIATES, AN ILLINOIS LIMITED PARTNERSHIP","entity_type":"FORLP","entity_type_normalized":"foreign_lp","status":"I","filing_date":"1974-12-07","filing_year":1974,"business_age_years":52,"principal_address1":"505 N. MICHIGAN AVE.","principal_address2":"SUITE 340","principal_city":"CHICAGO","principal_state":"IL","principal_zip":"60610","principal_country":"","mail_address1":"505 N. MICHIGAN AVE.","mail_address2":"SUITE 340","mail_city":"CHICAGO","mail_state":"IL","mail_zip":"60610","mail_country":"","location_name":null,"location_address1":null,"location_address2":null,"location_city":null,"location_state":null,"location_zip":null,"fei_ein":"000000000","jurisdiction":null,"county":null,"last_transaction_date":"05061988","report_year_1":"1986","report_date_1":"12291986","report_year_2":"1986","report_date_2":"12291986","report_year_3":"1986","report_date_3":"04291986","agent_name":null,"agent_type":"P","agent_address":"","agent_city":"","agent_state":"FL","agent_zip":"","process_name":null,"process_address1":null,"process_address2":null,"process_city":null,"process_state":null,"process_zip":null,"source_file":"cordata9.txt","fetched_at":"2026-05-09 16:18:26","updated_at":"2026-05-09 16:18:26","last_accessed":null,"status_reason":null,"agent_name_raw":""},"officers":[{"name":"David C. Kantorczyk","first_name":"David","last_name":"Kantorczyk","title":"General Partner","title_roles":["General Partner"],"title_code":"g","is_registered_agent":false,"address":"3852 KIRK","city":"SKOKIE","state":"IL","zip":"","name_raw":"KANTORCZYK, DAVID C."},{"name":"Lester Mehlman","first_name":"Lester","last_name":"Mehlman","title":"General Partner","title_roles":["General Partner"],"title_code":"g","is_registered_agent":false,"address":"111 E. CHESNUT STREET","city":"CHICAGO","state":"IL","zip":"","name_raw":"MEHLMAN, LESTER"}],"filing_history":[],"status_history":[],"unknown":["status_history: we do not collect status-change histories from the source feeds, so this empty list means we hold none — NOT that this company's status has never changed. Observed changes we DID see are under `history`."],"verified_domains":[],"history":null,"web_contact":null,"provenance_url":"https://private.rootz.global/api/provenance/FL/A04079"}