A broker representing a seller is reviewing a contract for sale, and discovers that the buyer is signing as a corporation. The broker should take all of the following steps to ensure the validity of the contract EXCEPT:

Verifying that the corporation exists is essential to ensure that the entity signing the contract is legitimate and has the capacity to enter into binding agreements. This step is crucial for protecting the seller's interests and ensuring that the buyer can fulfill the terms of the contract.

Obtaining a personal guarantee is a prudent measure to mitigate risks associated with corporate signatories. Since corporations can sometimes face financial difficulties or lack adequate resources, a personal guarantee from an individual ensures that there is a responsible party who can be held accountable for the contract's performance.

A board resolution is an important document that confirms the authority of the individual signing the contract on behalf of the corporation. This step is necessary to ensure that the signer has been duly authorized to bind the corporation and that the contract is valid and enforceable.