Not b/c it would cause problems just b/c it's common courtesy not to force your ex to watch you re-marry. Even though she has moved on it still wouldn't be pleasant.

i think it would be sort of funny to watch how she reacts

I agree with Kels it is just not the thing to do and she is over him and all but it would just be awkward having your ex wife at your wedding.

yes i wud love to see addie again XD

Please, please no crossover EVER again!

Nahhh.

I think if they can give a good reason to why she's there then i'm fine with it.

(: Addieee <3

I don't particularly like Addison but it's only polite to at least invite her. She can always refuse.

No one will be forcing Addison to go to the wedding!! I think they should invite her and it´s up to her going to the wedding or not. Obviously they will understand her reasons.

Sure, I love Addie :D

i also think that they will invite her because derek is friends with Naomi and Sam from the practice as well and if he invites them he has to invite Addison

i don't know maybe it will be a little hard for Addie : dont hurt that woman <3

maybe they should, but it would be hard for Addison and weird

DEFINITELY! I believe Addison will be happy for them! xD

I dunno it would be so much fun to have her there. But it could be a little awkward since she is Dereks ex-wife. Although she was the one who told Mer to fight for Derek..
Not sure...

she is on their side and is complletely over derek and has moved on to noah