The hotel and residential condominium associations at the high-end One Bal Harbour oceanfront tower are fighting over who pays how much for building expenses.

The hotel-condo association claims its residential counterpart illegally adjusted the allocation for the electric, gas, water, sewer and valet bills, leaving the hotel-condo owners to overpay by $2 million in five years.

The residential-condo association countered it had the right to make changes after buying a third part of the building, the so-called hotel lot.