certain disputes involving a lease with Lincoln Leasing Corporation (LLC), whose property at that time was in the possession of Continental Service Corporation (the Receiver), a receiver appointed by the district court. In the alternative, the Schonfelds sought leave to sue the Receiver in an independent action. The district court denied their petition and instead granted the petition of the Receiver that the Schonfelds be enjoined from interfering in any way with the Receiver’s possession of the leased premises. We reverse and remand for further proceedings.
I.
On November 24,1975, the Securities and Exchange Commission (SEC) filed a complaint against several corporate officers and a group of affiliated corporations, including LLC, alleging violations of sections 17(a) of the Securities Act of 1933, 15 U.S.C. § 77q(a), section 10(b) of the Securities Exchange Act of 1934, 15 U.S.C. § 78j(b), and Rule 10b-5, 17 C.F.R. § 240.10b-5. The complaint sought injunctive relief and the appointment of a receiver. In the SEC’s view, the district court’s authority to appoint a receiver was comprised within both its inherent power as a court of equity and the general equity power conferred upon the district courts by the Securities Act of 1933 and the Securities Exchange Act of 1934. On December 2, the district court, after a hearing, appointed the Receiver to take possession of all property of the corporate defendants. That order generally enjoined all defendants “and those persons in active concert or participation with them” from taking or interfering in any way with the corporate property in the Receiver’s possession.
At the time the Receiver took possession, LLC was the lessee and sublessor of a valuable piece of Tucson, Arizona real property, the Woolco Shopping Center, which was worth approximately $4,500,000. The Schonfelds were the owners and lessors of that property, having purchased it from LLC in a December 1974 sale and leaseback transaction. Rent for the shopping center due on December 1, 1975, was not paid. On December 12, the Schonfelds sent to LLC and the Receiver a demand for the past-due rent and notice that failure to pay within 20 days would constitute a default of the lease. On December 23, the Schonfelds sent to LLC and LLC’s subtenants in the shopping center notice of two breaches of the lease expected to become effective on the first business day in January 1976, thereby putting the lease in default. These breaches were (1) nonpayment of rent within the 20-day period following notice, and (2) possession by a receiver for more than 30 days. On December 30, the Receiver sent the December rent to the Schonfelds. The Schonfelds acknowledged receipt of that rent on January 5 but noted a failure to pay a $748 late charge and demanded that amount. Apparently the Receiver sent January’s rent on January 5 or 6.
On January 5, the Schonfelds determined that LLC was still in the receivership that had commenced December 2. Accordingly, on January 13, they notified the Receiver of default and termination of the lease. The sole basis for the attempted forfeiture was a provision of the lease defining as a default and breach of the lease:
the appointment of a trustee or receiver to take possession of substantially all of Lessee’s assets located at the Premises or of Lessee’s interest in this Lease, where possession is not restored to Lessee within 30 days.
On that same day, the Schonfelds demanded that the Receiver cancel what in essence was an $800,000 second trust deed given LLC by the Schonfelds as part of the December 1974 sale and lease-back transaction. The demand for cancellation of the security interest was made pursuant to an addendum to the lease which provided for such cancellation in the event LLC breached any terms of the lease.
Sometime before February, the Receiver tendered partial payment of the February rent to the Schonfelds’ agent, the Bank of America. At the Schonfelds’ direction, this