@NathanG - Getting cold feet and hands on real estate deals happens all the time. That’s nothing to feel embarrassed about. What’s worse is when a wedding falls through. I’ve seen that scenario played out a few times myself (no, not mine, I showed up for that one).
Imagine the humiliation of sending out all of those invitations, only to break the whole thing off a few weeks before. However, it is a big commitment. It’s better not to follow through on something you have serious doubts about.