In the people's court received a claim Zamorenova

The people's court received a claim from Zamorenova, in which she asked to declare the marriage contract null and void.
Zamorenova reported that she entered into a marriage with the defendant in 1995. The marriage contract about their property relations was concluded and certified by a notary in 1994.
In accordance with the marriage contract, the dacha, acquired during the marriage, passes to the defendant, which puts her in an extremely unfavorable position. The remaining terms of the marriage contract do not violate her property rights.
Question to the task
Are the claims on recognizing the marriage contract invalid?

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