I would not be so fast with "the obvious answer to that is yes" because methods of soliciting inventors are heavily regulated, and the regulations are strongly enforced. This laws aim to protect persons from a vast variety of money scams. There are both state and federal laws on this topic.
Many solicitations must be done by a licensed person, like a stock broker or real estate broker. Many solicitations must be registered with the SEC before the solicitation is made, including public company offering and private placements.
Many regulations arise from soliciting the sale of securities. Securities is broadly defined.
Here is a link to a discussion on private placements of securities.
Many regulations arise from brokering loans; if you are not a licensed broker, then you should not be soliciting investors for real estate loans. Many regulations arise from brokering equities.
If you are looking purely for investor/lenders, (not partners) the risk is higher. Generally, the risky area is soliciting investors and lenders, either as direct investor lenders or as members of an LLC or as shareholders of a corporation; the area less regulated is soliciting partners, managers and other "insiders." Once a person is an "insider" you may solicit them for investments, as long as the all the investors are insiders, i.e. there are no outsiders.
I would suggest you use a lawyer to be sure you comply with the regulations, or to be sure do not solicit in a manner that falls with in a regulatory area.