If you use the real estate interest in
DVC as collatoral, that is called a real estate mortgage, under most circumstances, yes, it would be deductable.
If you took out a personal loan, it is not deductable.
If you used a second mortgage on your home, it would also be deductable.
"From each according to his ability, to each according to his needs", Karl Marx,This has failed every time it has been tried, why do we still have liberals?