| Relationships | Role | Relationship Start | Relationship End |
| Real Estate Research Corporation | Parent | 12/31/1976 | 11/3/1978 |
| First Chicago Corporation | Parent | 12/31/1970 | 12/30/1976 |
| Relationships | Role | Relationship Start | Relationship End |
| Real Estate Research Corporation | Parent | 12/31/1976 | 11/3/1978 |
| First Chicago Corporation | Parent | 12/31/1970 | 12/30/1976 |