Repost BHB - doc vs maitre'd

Hello,

Anyone can help me what is the diff between them?
I am having ceremony and reception at the same place at Watermill and I have small bridal party ( 3 bm, 1 moh, 3 grooms men, and 1 bm ) and 1 fg and 1 rb.

Do you guys think I need a doc ?

TIA,
Nadia