I don't dismiss these concerns: I've lived them. I spent months contracting for a little startup helping them out for a little pay so that I could try to plant the seeds for my own startup so that it would look legitimate enough to the immigration people that I could get a visa for it. It's risky and scary and tenuous, and it's hard work, and I didn't have a home at the time, either: I couch surfed with a variety of very generous friends.

My point is that there are certain risks one can take on the way to success. I'm not arguing that these risks shouldn't be mitigated, I'm saying that you, personally, shouldn't consider them as different in kind of the other risks that you face as an entrepreneur. Such limitations are too easily transformed into excuses.