A narrative which addresses the following:
The topic, issue, challenge, or legislation to be addressed in the requested legislation
The problem statement: What is the problem or issue?
A brief history or background of the topic, issue, challenge, or legislation.
The public good or benefit if this legislation is passed
The legislative body to which you are you presenting this legislation
The name of a potential sponsor(s) and which committee(s) will have jurisdiction
Who is likely to be in favor of the bill and/or against it?
Whether public funding will be needed to implement the legislation

A list of sources or bibliography

Properly cite your work where needed
federal, state (MD) Maryland  or local bill (legislation)