So our venue covers our officiant fee - they basically tell us here is who we recommend, if you use them we cover the fee. Great. We aren't picky, it's not a religious ceremony, works for us. We looked on their website and it says "A portion of every donation we receive is given to blah blah blah".
What is this donation and how much are we expected to donate?? Is it basically a tip?? I was thinking $50-100 but want to make sure that isn't totally below the norm.