I believe that you can only deduct depreciation if the property is exclusively held as a rental.
The question is how your position would hold up if the IRS decided to audit you. Since there is a clause in your
DVC membership that forbids owning for commercial purposes (i.e. that you may not buy DVC to use exclusively as a rental), I suspect they would easily object to your position and consider it an invitation to carefully dig further to see what sorts of other "aggressive" positions you might have decided to take...
Like I said, you take your chances...