It's impossible to say how frequently contingent offers fail when selling a house because it varies greatly based on the nature of the transaction and the stipulations included. However, contingent offers frequently fail because the contingencies are not met or the parties are unable to reach an agreement.

For example, if the buyer's finance condition is not met, the deal may be canceled. Similarly, if the buyer's inspection contingency reveals major faults with the property that the seller refuses to remedy, the deal may fall through.

Generally, both buyers and sellers should be aware of the contingencies included in a sales contract, as well as the risks and potential issues that may develop during the transaction. Partnering with a reputable realtor can assist both parties in navigating these obstacles and increasing the likelihood of a successful sale.

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