Using the RIA Checkpoint website

Dax Jones submitted his 2023 tax return on time and elected to file a joint tax return with his wife, Darlene. Dax and Darlene did not request an extension for their 2023 tax return. Dax and Darlene owed and paid the IRS $124,000 for their 2023 tax liability. Two years later, Dax amended his return and claimed married filing separate status. By changing his filing status, Dax sought a refund for an overpayment for the tax year 2023 (he paid more tax in the original joint return than he owed on a separate return). Is Dax allowed to change his filing status for the 2023 tax year and receive a tax refund with his amended return? What regulations section gives you this answer?

Arden purchased 300 shares of AMC common stock (NYSE: AMC) several years ago for $1,500. On April 30, Arden sold the shares of AMC common for $500 and then purchased 250 shares of AMC preferred stock two days later for $700. The AMC preferred stock is not convertible into AMC common stock. What is Ardens deductible loss from the sale of the 300 shares of AMC common stock? What regulation sections leads you to this conclusion? Longhaul Real Estate exchanged a parcel of land it held for sale in Bryan, Texas, for a warehouse in College Station, Texas. Will the exchange qualify for like-kind treatment? What IRC section lead you to this conclusion?