@Anonymous_ wrote:
The estate should actually reimburse you for the property taxes you personally paid.
"She also was delinquent on the property taxes for the home and I had to pay ~$9k to bring that up to date. Am I able to deduct this from any capital gain?"
While it is true that your mother's estate should have paid the taxes, if we are correct that there were only 2 heirs, that means that $4500 would have come out of your sister's share of any cash or property, and $4500 would have come out of your share. If your sister was still alive, it could be argued that she owed you $4500, but not $9000. And if, as it seems, you are your sister's only heir, then her estate contains that $4500, so you are getting it back eventually, just not in the way you might have expected.
