Andres wouldn't be trying to escape if he were either Maven or British. Rather, he would be dedicated to killing us, and that entails staying on board. There is absolutely no way Andres is scum right now, or else this is was very complicated scheme to pull off.

Here is what I suggest. If Andres has any sense in him, he will leave tonight. The mafia will not try to kill him because he is a wasted kill. They may try to recruit him, however, since he is for now basically a confirmed innocent. If Andres has not left the ship in two phases, there is a good chance he's been converted and he should be lynched. Otherwise, he can't have too much gold and he's a waste of a lynch now if he was only going to leave later. Let's lynch someone with some actual suspicion on them.