I am quite close to a lot of deals and I can definitely say that most people who are considered a-list investors today are both: a) willing to invest in someon

I am quite close to a lot of deals and I can definitely say that most people who are considered a-list investors today are both: a) willing to invest in someone who is waiting for a visa b) willing to use their contact network to get their investment secured with a visa for the founders. I've seen this happen multiple times - good lawyers pulled into the deal to expedite visa issues. It is in the investor's best interest.