In the operation or management of housing projects an authority shall at all times observe the following duties with respect to rentals and tenant selection:
Nothing contained in this section or § 36-21 shall be construed as limiting the power of an authority to vest in an obligee the right, in the event of a default by the authority, to take possession of a housing project or cause the appointment of a receiver thereof, free from all the restrictions imposed by this section or § 36-21.
Va. Code § 36-22