I'll go in reverse order, as I want to explain more with question #1.
For question #2:
People who want to obtain credit from financial institutions can use their property rights to do so.
For question #1: Entrepreneurs need to be able to borrow funds without being subject to discrimination, and they need an economic environment open to investment in new businesses.
The Equal Credit Opportunity Act (1974) established that lenders cannot discriminate against any credit applicant on the basis of color, race, religion, etc. This protects entrepreneurs from discriminatory lending practices.
The Jumpstart Our Business Startups Act, or JOBS Act (2012), aimed to create an open environment for new businesses by entrepreneurs, by relaxing some of the securities regulations on small businesses. Title II of that act allows entrepreneurs to communicate with a larger number of investors as they sought funding. Title III (with rules that went into effect in 2015) allows for crowdfunding. Title IV allows investors to invest up to ten times as much in startups, with less strenuous registration requirements.