Which requirement must all new applications to Allstate fulfill?

The requirement that all new applications to Allstate must fulfill is having a signature from the primary insured. The signature serves as a critical component of any insurance application, as it indicates that the applicant agrees to the terms and conditions of the policy, providing consent for the contract to be enforced. It is a fundamental legal requirement that acknowledges the applicant's understanding of the coverage and responsibilities involved.

Other requirements, such as an inspection of the property or proof of previous insurance, may be pertinent under certain conditions or policies, but they are not universally mandated for all applications. Similarly, a credit check may be performed, but it may not be a requirement for every applicant. The necessity of the primary insured’s signature ensures that the application is valid and can be processed legally.