Final answer:
The document that provides full disclosure to investors in a new limited partnership issue is called a prospectus, which contains all the vital information for making an informed investment decision.
Step-by-step explanation:
The document that provides full disclosure of all relevant information to investors in a new issue of a limited partnership is the prospectus. The prospectus is a formal legal document that describes the details of the investment offering to the public. This document is vital for investors as it includes information about the aims of the partnership, the risks involved, the background of the managers, and details about the investment itself, such as the terms and conditions, structure, and operations of the partnership.
A tax opinion is a professional analysis and advice on the tax aspects of a transaction, while a custody agreement is related to the holding and safekeeping of securities. A partnership agreement details the relationship among partners in a partnership, including the allocation of profits and losses, the management of the partnership, and other operational matters.