These templates have been written with best practices for documents of their type, and they are intended to be usable in all 50 states. However, whether a specific contract or agreement is enforceable is a question specific to that actual agreement.
In the case of these documents, they are provided as a "self-help" measure for you to create your own legal documents. If they are completed correctly and fully, and signed by all parties, they would be expected to be enforceable in any jurisdiction in the United States.
However, if you make changes to the documents other than per the instructions, or if the documents are otherwise defective according to a court or administrative agency, it is possible the documents may not be enforceable.
Long story short: unfortunately there is no way for Startomatic to guarantee enforceability. If you need assurances about enforceability, we recommend you speak with an experienced business lawyer in your state.