You'll need your tenancy reference number, date of birth and postcode to be able to register.
Sovereign is one five housing associations participating in the voluntary Right to Buy pilot.
If you are a Sovereign tenant and live in Oxfordshire (but not Oxford City) you can register your interest here to participate in the pilot.
Once you've registered, we'll send you an application in the New Year.
The free MySovereign mobile app is available to download from iTunes, Google Play and Windows Phone.