879 registered owner entities starting with "O"
| Landlord / Owner entity | Grade | Buildings | Code Enforcement Cases |
|---|---|---|---|
| Onwualu, Austin E and Ngozi V | A | 1 | 0 |
| Onwuka, Charles | A | 1 | 0 |
| Onyejiji, Cosmas A Co Tr | A | 1 | 0 |
| On, Yosef and Sharon | A | 1 | 0 |
| Onzol, Christopher and Bozena Trs | A | 1 | 0 |
| Ooi, Kean Jin and Xu, Chunyan | A | 1 | 0 |
| Ooi, Mervin S and Fiona M | A | 1 | 0 |
| Oorloff, Kelley and Olivelle, Nell D | A | 1 | 0 |
| Opara, Ignatius | A | 1 | 1 |
| Opdahl, Laura | A | 1 | 0 |
| Opell, David L and Terri K | A | 1 | 0 |
| Opendoor Property Trust I | A | 4 | 0 |
| Opos, Joshua and Alexis Trs | A | 1 | 0 |
| Oppenheim, David Tr | A | 1 | 0 |
| Oppenheimer, Dorothy A Et Al Trs | A | 1 | 1 |
| Opp Zone Llc | A | 4 | 7 |
| Optical Zonu Corporation | A | 1 | 1 |
| Optimist Boys Home and Ranch Inc | A | 1 | 0 |
| Option One Group Llc | A | 2 | 0 |
| Opus At Echo Lp | A | 1 | 2 |