Many loan servicers are under the misimpression that the prohibition against dual tracking only applies to loan modifications. This is incorrect; it also applies to forbearance agreements, deeds in lieu of foreclosures and short sales.
During the foreclosure process, any party may seek the assistance of a Receiver. The purpose of a Receiver is to maintain the status quo. They manage the property by overseeing maintenance and day-to-day operations, including collection of rent and payment of expenses. A Receiver has the ability to enter into leases, authorize repairs, retain attorneys, etc.