Final answer:
Brokers registering with a commission are typically required to follow specific document submission guidelines. While there's no universal standard for letter size, a professional and legible font like 10 or 12-point is commonly used. For electronic submissions, the system formats documents accordingly.
Step-by-step explanation:
When a broker registers with the commission, typically a regulatory body such as the Securities and Exchange Commission (SEC) in the United States, there are specific guidelines that need to be followed. These guidelines generally relate to the submission of documents and information about the brokerage firm and its associates.
However, the question seems to reference a physical characteristic of the submission, such as the size of letters used in the documents. It is important to clarify that while there may not be a standard letter size universally required, the use of a professional and legible font size such as 10 or 12-point font is common for business and legal documents to ensure clarity and legibility.
Brokers are required to fill out and submit Form ADV to register with the SEC. This form, which is available electronically, has set parameters for text entry that must be adhered to in the online system. Therefore, specific typeface or letter size may not be a choice of the filer, as the electronic system will format the final document for submission.