bringing a character over from ff?

i've brought over a couple characters from ff who have all/most of their memories, and all i've really done is not mention/have them forget the names of clans/characters (unless i have permission from the character's rper to name them), since i'm pretty sure the only rule regarding other sites is that u can't name any groups or anything ?

i've also brought a couple and just changed their history a bit ? like with barb, instead of having her grow up in and lead bloodclan, i had her grow up in a city and be a crime boss instead, and i used characters from her past that formed her current personality and kinda just,, placed them in her other setting with permission from their roleplayers :^)