No you do not, they are just a few that were recommended by the venue in the area.
Beach chic is considered elegant beach ware. For women it is recommended either midi or maxi dresses, light/airy, w/ recommended lighter color tones. For men it is considered khakis/button ups.
Unless you are engaged/married, no you do not get a plus one. We are keeping this a very intimate wedding.
No, you do not. We honestly just are so grateful to those who can make it and do not expect any gifts. If you would like to give us a gift of your choosing that is fine, otherwise contributing to this fund is appreciated!