The cost of repairs and maintenance for a rental property is deductible as long as the property has been held for rental at a fair rental price. However, because there was no rent, the net loss (expenses in excess of income) is subject to the passive activity loss rules. Unless you qualify as a real estate professional, losses generally are limited to passive activity income for the year; excess losses carryover. However, you may qualify for the $25,000 loss deduction limit for property in which you actively participate.
Debt secured by a principal residence or second home to the extent of the excess of fair market value over acquisition debt. An interest deduction is generally allowed for home equity debt up to $100,000 ($50,000 if married filing separately).