| Relationships | Role | Relationship Start | Relationship End |
| Rbc Tax Credit Iv, Llc | Parent | 12/31/2004 | |
| 23Rd Street Elderly, Lp | Subsidary | 4/29/2005 | |
| 25Th Street Elderly, Lp | Subsidary | 4/29/2005 | |
| Autumn Ridge Apartments, Llc | Subsidary | 4/29/2005 | |
| Countryside Housing Lp | Subsidary | 4/29/2005 | |
| Highland Green Llc | Subsidary | 4/29/2005 | |
| Olive Grove Apartments, L.P. | Subsidary | 4/29/2005 | |
| Rose Park Plaza Partners, Ltd. Rlllp | Subsidary | 4/29/2005 | |
| Parkview Of Caledonia Ii, L.L.C. | Subsidary | 4/29/2005 | 11/29/2016 |