The new line, Christina HOME, debuted in October 2020. On July 14, 2020, Haack announced she will be partnering with Spectra Furniture to create a furniture line for the brand. In March 2020, Haack released a book, The Wellness Remodel, with certified nutritionist Cara Clark. In 2017, Haack presented at the Daytime Emmys. The show's second season premiered on January 2, 2020, on HGTV. Filming began in fall 2018, for a spring 2019 premiere.

The first episode of season 1 focused on Haack renovating her new post-divorce home, with the remaining seven episodes focusing on her renovating other people's homes. In June 2018, it was announced that Haack would be receiving her own spinoff show, Christina on the Coast. In April 2013, Flip Or Flop finally hit the small screen on the network. In a 2014 interview, Haack said, 'Each episode shows things that can go wrong, and do go wrong'. In 2012, HGTV signed the couple to a regular weekly program that featured the ins and outs of flipping a house, as well as a look at their family life. HGTV producers had also noticed the couple's Instagram profile, which featured before and after profiles of many of the renovation projects they had undertaken. The audition tape of the flip was sent to a production company without anyone believing that it would be of much interest to them, but the production company, Pie Town Productions, loved it. The friend filmed an entire episode of the process of house flipping from start to finish. One day in 2011, on a spontaneous whim, Tarek asked a friend to help him make an audition tape for HGTV.

Christina and Tarek went from living in a $6,000-per-month house to a $700-per-month apartment in just a few years. When the housing market plummeted after the October 2008 stock market crash, their real estate business suffered. The husband-and-wife team sold real estate in the southern California area. The business is now owned by Tarek and Associates, a sole venture of Tarek El Moussa. The El Moussa Group was dissolved in 2018. The trio continued to flip houses, expanding their real-estate investing business into Arizona and Nevada. In 2010, the El Moussas, along with their business partner Pete De Best, bought their first investment property in Santa Ana, California for $115,000, selling the property for a profit of $34,000. Haack ran the real-estate agency Tarek and Christina: The El Moussa Group with her first husband Tarek in Orange County, California. She went to school in southern California and began working in the real estate industry after college, where she met her future ex-husband and business partner, Tarek El Moussa. She has a sister, Carly, who is ten years younger.

Haack was born Christina Meursinge Haack in Anaheim, California.

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