The apartment is a second home treated as an investment.
When entering it into TurboTax you'll go to the 'Wages and Income' section and scroll down to 'Investment Income'. You'll click on the first link there 'Stocks, Cryptocurrency, Mutual Funds, Bonds, Other' (real estate is the other). You'll enter all of the details on the house including the date that you sold and purchased it.
You'll have a capital loss that you can deduct against other capital income or against regular income at the rate of $3,000 a year.
@gonzalezceq
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