Steve Pratt, who is single, purchased a home in Riverside, California, for $$525,000.$ He moved into the home on February $1$ of year $1.$ He lived in the home as his primary residence until June $30$ of year $5,$ when he sold the home for $$855,000.$

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What amount of gain will Steve be required to recognize on the sale of the home?

Assume the original facts, except that the home is Steve's vacation home and he vacations there four months each year. Steve does not ever rent the home to others. What gain must Steve recognize on the home sale?

Assume the original facts, except that Steve married Giuseppina on February $1$ of year $3$ and the couple lived in the home until they sold it in June of year $5.$ Under state law, Steve owned the home by himself. How much gain must Steve and Giuseppina recognize on the sale $($assume they file a joint return in year $5)?$