Embassy: will it be demolished?

Question #1:

If embassy build in colonial province, will it be destroyed once provinces separate into the colony?

Question #2:

If I build embassy in the colony which is on the beach: will it be ever dismantled?

It shouldn't, right? As you will always border with the see.

Question #3:

Will I get money back if building is dismantled?

Question #4

If embassy is built on the border, and border changes, will it be dismantled? I believe so, just would like to confirm..

Thanks.