Personal anecdote: I was the manager of a small investment fund that invested in a YC company that was acquired by an Australian company. As a result we ended up owning some stock in this Australian company. In order to sell this stock and cash out, I had to open up a brokerage account for the fund (which was an LLC) in Australia. Very long story short: it was a freakin' nightmare. It took six months. All to sell some shares in a public company.