Hi! Mity here is your sister. Initially, when Ava first arrived she would have been very unwelcoming however they'd have only been living together till she was 3/4 as Mity was off to Hogwarts in '79, and it may be questionable how much of this time period Ava would actually remember. She was like this with all of the siblings it isn't personal. But she only did her OWLs and was back with Clara and they'd have the 84 to 87 overlap. She has come around to her in the last 17 years but the exact relationship is to be seen. As a whole Mity takes her role as second eldest pretty seriously and tends to mother the other girls - probably Ava even more aggressively with her being one of the youngest - though she still can come across as blunt and rude sometimes but at this point would probably kill for each of her sisters even if one on one they aren't besties.

And then Calla Potts and Ava were dormmates first through fifth year!

I have no gold digging potential men for ya I'm afraid as my only men are Mander (who sorry probably wouldn't give her the time of day) and Tony (not really her aim).