What terrible news for you and everyone in the complex; so glad it's just "things" that got hurt, but how upsetting and shocking.
I'm trying to think of other resources for you....
I'd call your local Red Cross as they may have a fund for people who've experienced something similar or be a great help pointing you to organizations that have clothing etc for families in need.
If they can't help, I would call the closest domestic abuse shelter and explain that while you AREN'T in need of their services, you were hoping they might point you to community resources that help get people up and running in "new lives" quickly. IME they will have a wealth of suggestions for your family.
Take care!