Custodi Squire

The phrase "the vote is tied" refers only to when there is more than one choice that received the most votes. For example, if a 5-player vote from among three different choices ends 3 votes to 1 vote to 1 vote, the vote isn't tied.

Players can't do anything after they finish voting but before the spell or ability that included the vote finishes resolving.

If Custodi Squire is not on the battlefield when its ability resolves, the vote will still take place and the card(s) that had the most votes will still be returned to your hand.