All Human, Spuffy have to take care of baby after an accident?

Hi all, looking for a spuffy fic where they become guardians for a baby girl. I believe it was Angel and Drusilla's daughter? and they both pass away in a car accident. I remember Buffy and Spike disliking each other at the wedding.

Sorry that's all I remember!
Thank you for any help in advance!

I haven't read it yet but that matches the summary for Family in Law by shampocommercialhair. You can find it on Elysian Fields.

Skipper
Thanks!!