RHOBH Star Mauricio Umansky Fights to Protect Father from Alleged Abuse

Umansky and his sister Sharon accuse his father's girlfriend of spending over $400K on herself

Apr. 6, 2026 at 12:51am

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For several years, 'RHOBH' star Mauricio Umansky and his sister Sharon have been engaged in a legal battle to protect their father, Eduardo, from alleged abuse and financial exploitation by his longtime girlfriend, Simin Tabibnia. The family has accused Tabibnia of spending around $401,000 on herself, including gifts and a facelift, and they are now demanding the funds be returned. Tabibnia maintains the money was given to her voluntarily by Eduardo during their 18-year relationship. The case is currently in court as the Umanskys fight to ensure their father's safety and financial security.

Why it matters

This case highlights the challenges families can face when trying to protect elderly or vulnerable loved ones from potential abuse or exploitation, especially when there are complex financial and personal relationships involved. It also raises questions about the rights of adult children to intervene in their parents' personal affairs and the burden of proof required to establish conservatorship or financial mismanagement.

The details

According to the lawsuit, Mauricio Umansky and his sister Sharon believe their father, Eduardo, has been in cognitive decline since 2021 and that his girlfriend, Simin Tabibnia, has been taking advantage of him financially. The family has accused Tabibnia of spending around $401,000 on herself, including gifts and a facelift. Tabibnia, who also works at Mauricio's real estate company The Agency, maintains that the money was given to her voluntarily by Eduardo during their 18-year relationship.

  • The Umanskys filed for conservatorship over their father in recent years, citing his cognitive decline since 2021.
  • The current lawsuit accusing Tabibnia of financial exploitation was filed in 2026.

The players

Mauricio Umansky

A 'RHOBH' househusband and the co-founder of the luxury real estate firm The Agency.

Sharon Umansky

Mauricio's sister, who is also involved in the legal battle to protect their father.

Eduardo Umansky

Mauricio and Sharon's father, who is at the center of the alleged abuse and financial exploitation case.

Simin Tabibnia

Eduardo Umansky's longtime girlfriend, who is accused of spending around $401,000 on herself using his money.

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What they’re saying

“The alleged transfers occurred during an 18-year intimate romantic relationship between Simin and [Eduardo]. Any 'payments were voluntarily made by [Eduardo].'”

— Simin Tabibnia

What’s next

The judge in the case will decide whether to grant the Umanskys' request for conservatorship over their father's affairs.

The takeaway

This case highlights the complex challenges families can face when trying to protect elderly or vulnerable loved ones from potential abuse or exploitation, especially when there are long-standing personal and financial relationships involved. It raises important questions about the rights of adult children to intervene in their parents' lives and the burden of proof required to establish conservatorship or financial mismanagement.