Technically incorrect on both counts. You're not supposed to have equipment active at more than one account at any given time. The point is to prevent theft from one account providing the neighborhood with television. With that being said, it is ethical to have more than one location active as long as you are not stealing programming but per D* agreement, you would be in breach.
Receivers leased to D* must go back if they are deactivated unless, of course, D* no longer requires the receiver to go back(mostly non-SWM compatable receivers).
It use to be that way, but now, for seasonal customers who move from one place to another, leased recievers can be put on seasonal/vacation plan in one location, while the ones in the other location are activated. They all just can't be active on the same account at the same time. If you need recievers active in both locations at the same time, then each location must have it's own account.
If the leased recievers are disconnected for any other reason than this, then they must be returned if they are a recoverable model type. You still can't suspend a reciever simply because your not using it to save 6$, etc..
Also, for anyone needing to know or wondering, the department you need to speak with for secondary accounts or mobile accounts (RV's, boats, etc), both are handled by the Movers department.