A two-party check is cashed at the bank where it's from or at check-cashing stores. A two-party check is written to two individuals.
Two different derivations of two-party checks exist that a person may receive. First, there is a two-party check written to either party. In that case, one of the individuals to whom the check is written may cash it with only his signature. This is common for married couples, who may receive checks jointly. Secondly, there is a two-party check written to both parties jointly. For this type, both individuals need to sign the check to cash it.