Activity for Celine

Does anyone know of any hotels along Wilshire Blvd that offer "wedding packages" for guests? I have approximately 17 guests flying in for my wedding. The ceremony and reception venue is on 4350 Wilshire Blvd, Los Angeles 90010.

If you've visited 3-5 vendors for your wedding (ie, photography) and chose the one you like, should you inform the others that you've already booked someone? If so, what do you say? Do you give them the company's name too?