The TV personality has been paying her estranged husband $12,000 a month in temporary maintenance -- a form of spousal support paid by a higher-earning party while divorce proceedings are pending.
Frankel's attorney, Allan Mayefsky, said in a statement to ET that the 45-year-old reality star is "pleased" with the court's decision.
"Bethenny is particularly pleased that the trust agreement, which was used in an attempt to obtain joint ownership of an apartment that she purchased, was rendered void and invalid due to fraudulent behavior in connection with the execution of the agreement," Mayefsky said. "We believe that the evidence, including evidence of the husband's fraudulent behavior and unclean hands, will clearly demonstrate that Bethenny, who is the sole purchaser, is also the sole owner. We are also pleased the court invalidated the award of interim spousal support to Jason based on his waiver in the prenuptial agreement."
According to court documents, the SkinnyGirl mogul and her ex signed a prenuptial agreement waving claims for alimony or spousal support.
In a statement to ET, Hoppy's attorney, Bernard Clair, contested the judge's interpretation of the couple's prenup, arguing, "We believe that the court was in error when they applied an across the board waiver of the right to receive temporary support when the words to extinguish the right did not appear in the prenup."
Despite the court ruling in Frankel's favor regarding monthly support, she and Hoppy – who share custody of their 5-year-old daughter Bryn – are still set to battle over the ownership of their New York City apartment, where Hoppy is still living.
During the course of their relationship Frankel routinely paid for the apartment, which was purchased under a trust that named both herself and Hoppy as beneficiaries.
Frankel claims she was the sole purchaser of the property, while Hoppy argued that it was bought with the intention of being a joint property. Furthermore, he claims to have paid for maintenance and renovations. The apartment, which was purchased for $5 million, has appreciated in value and is currently worth an estimated $7 million.
The court deemed the trust invalid, but did not rule on who would be awarded rights to the property.
Hoppy's attorney remains optimistic about the ruling, telling ET, "Jason is very happy that the court agreed with him that the ownership of the marital apartment is still an open issue and that he will get his day in court."