Alpha 0.4 is the first build with a save system, unfortunately its still buggy and commonly gets corrupted.
It is possible to complete the quest (not sure how many ways work, but there is more then one route) but its strongly suggested that you start the Quest on a fresh save (sucks I know but its growing pains).
The route I took to complete this quest was to lock pick the chest the deed is stored in. In the encampment there is chest next to the Archery area (the log target side) If you face this chest and turn around you should see another almost parallel to the one your inf front of, this is the chest that the deed gets placed into.
It is not always in there, I don’t know exactly what time its placed but if its not there when you pick the lock just do some sword fighting and check back every so often.