LetsVenture does a soft curation of Startups for Investor Connect based on the Startup Funding Readiness Index. The curation is based on the Startup's Team Profile, Traction, Competition, Round information and Investor Deck. Once the Startup gets approved for Investor Connect, then only they can invite and connect with investors on the platform.
A Lead investor is someone who is willing to step in and don the mantle of the captain of the investor syndicate. The Lead investor should ideally have engaged with the startup for sometime to understand the business, and see how he can support the entrepreneur. Read in detail about the responsibilities here.