Hi Peter, I aim to apply for YC. I'm German. I have some questions regarding visas: 1) What kind of visa would I need for the three month program time? And ho

Hi Peter, I aim to apply for YC. I'm German. I have some questions regarding visas: 1) What kind of visa would I need for the three month program time? And how early in advance do I have to apply for it (i.e. do I have to apply before I know if I get accepted at all)? 2) What kind of visa would I need if I wanted to stay after the program (or if I don't get accepted, to start the company in the US)? From what I read an O-1 visa might be the best option, is that correct (I submitted my PhD thesis and have relevant publications, but won't get the official degree until mid next year)? How long in advance do I have to apply? Do I have to found the company first? 3) How much (approximately) will that cost? Thanks!