Mind your ths and rds

This is posted where I work. How would you pronounce December 3th? Would it be December thirth? December threeth? Reminds me of the 2rd floor post. Is it the 18th annual or the 16th annual? Also, is the event REALTORS® CareBlanket Drive or is it REALTORS Care® Blanket Drive? It's twice the former and once the latter, making me think it's the former, but the logo on the left makes me think it's the latter. Click the image to enlarge it.