Of course! But if they show up with you, make sure they go home with you! (jokes)
Yes, and no. If you answer the RSVP and let us know how many in your party, we can see what we can work out! We are trying to keep it small; we don't have a large venue that will fit everyone and their extended family.
Semi formal works, comfortable is important also! Being that it's in Yuma, maybe wear something on the lighter side early on then have a jacket or something to wear when it gets dark because it can get a little on the cold side! And also there will be a grass area so it’s up to you on what kind of shoes you feel comfortable in!