investment real estate

[Timbo99]

I am half owner of a mobile home in AZ. It is not my vacation home. The other co-owner lives there and pays the ground rent. I pay the taxes and all repairs and upkeep. We plan to sell it someday and split the profits. Can I 

deduct my expenses off my taxes?

[kdevere]

You can deduct the property taxes you are paying on your second home.  In fact, unlike the mortgage interest rule, you can deduct property taxes paid on any number of homes you own.

As for the repairs, any improvements that add value to the home are considered capital/depreciable improvements and will get added to your cost basis when you sell the home to reduce the taxable gain.  So for example if you pay to repave the driveway, or update a bathroom, those would be added to your cost basis when you sell the home to reduce the profit/gain on the sale.  If you were renting the property, you would be able to deduct the repairs and other miscellaneous expenses, but it sounds like you are not renting the property, so keep track of your capital improvements and you can deduct those property taxes you are paying.