What is two-party contract?

It is a contract between two entities. The most common is when a person buys goods or services. There is no limit to the number of parties in a contract, but the contract gets more complex the more people involved.
It is a contract between two entities. The most common is when a person buys goods or services. There is no limit to the number of parties in a contract, but the contract gets more complex the more people involved.