I would look in the Mt. Pleasant, Isle of Palms, Daniel Island, and Downtown for the closets stays.
Air B&B and VRBO are always good options if you would like a house.
We do have a couple hotel blocks for you if you choose.
Hotel
Holiday Inn Express & Suites Mount Pleasant
350 Johnnie Dodds Boulevard Mount Pleasant, SC 29464 (800) 465-4329
The group code is "TTW" or the group name is "Trautman-Terry Wedding" -- you will need one of these to book.