Mauricio Umansky calls out brother-in-law Rick Hilton for screwing him over in real estate business

Mauricio Umansky reflects on his fallout with brother-in-law Rick Hilton over not being made partner at the latter’s firm and the years-long family feud that ensued on the upcoming season of “Buying Beverly Hills.”

“I think I got kind of f–ked by Hilton & Hyland,” the real estate mogul said in a sneak peek of his Netflix show released Tuesday.

“And when I say f–ked, you know, like, today I’m happy, but there was a hundred agents at Hilton & Hyland. They did a billion dollars for the first time a year. I was 19.6 percent of their production.”

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Umansky, 53, said because of the success he brought to his brother-in-law’s Business, he thought he would be compensated by being made partner.

“I went to Rick and I said, ‘I’d really like equity, right, and to be a partner,” he explained during a discussion with his pals and colleagues.

After Hilton, 68, spoke with his co-founder Jeff Hyland, Umansky was told “no.”

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The father of three wanted to leave Hilton & Hyland to form his own real estate company, but first spoke to his now-estranged wife, Kyle Richards, about the decision because he foresaw that it might cause strain within the family.

“‘This is really going to cause a lot of stress between you, your sister and your family, and I don’t want to do this move of leaving and starting a company if you’re not comfortable,'” Umansky told his spouse, who is the younger sister of Hilton’s wife, Kathy Hilton.

With Richards’ approval, he created The Agency, which has become a top real estate firm and is the basis of his reality show, “Buying Beverly Hills.”

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However, Umansky shared in the sneak peek that Rick was allegedly upset that he did not get a “warning” about him leaving the company, which caught the former by surprise.

Umansky said in a confessional interview that his departure “unfortunately” caused his relationship with Rick to “sour” and “it really affected the family.”

“Kyle more than anybody,” he added. “You know, her family stopped speaking to her. But she understood that what was done to me was wrong and she stood by me and, at the end of the day, I needed that.”

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Page Six has reached out to reps for Rick for comment but did not immediately hear back.

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Umansky first spoke out about his controversial exit from Hilton & Hyland in his book, “The Dealmaker.”

“[Rick] and Kathy held tremendous anger toward us, which is not the way I choose to live my life,” the real estate broker wrote in his 2023 memoir.

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“Naturally, Kyle was very hurt by their reaction, and it was a difficult pill for her to swallow.”

Umansky also disclosed in the book that had Hilton and Hyland, 76, “paid [him] what [he] deserved” and “showed [him] an inkling of professional love,” he would have stayed at their firm.

When the tell-all was released last year, Umansky claimed he and his in-laws had worked out their issues.

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“We got through that,” he told Us Weekly in April 2023. “I just hope that as Rick and the family read my book, they realize that my stories are facts and real, and I’m certainly not throwing anything at them, because I love them more than anything.”

Three months later, it was revealed Umansky and Richards, 55, had separated after 27 years of marriage.

Their split has since played out on her show, “The Real Housewives of Beverly Hills,” and Page Six exclusively reported Tuesday that Umansky was overheard in Aspen, Colo., talking about moving out of their marital home.