From <a href="https:&#x2F;&#x2F;fellowship.ycombinator.com&#x2F;faq&#x2F;" rel="nofollow">https:&#x2F;&#x2F;fellowship.ycombinator.com&#x2F;faq&#x2F;</a>:<p>&quot;The only restrictions on acceptable teams are founders must be willing to work on their ideas full-time, and teams can’t have previously taken money from investors.&quot;