'Rules' info, please.

[question everything]

1. Depends how obsrvant they are

I am not expert, others are better, but with non Orthodox, one often wait for the arrival of family members.

Jewish law requires that burial take place as soon as possible, preferably within 24 hours of death. Burial may be delayed for legal reasons; to transport the deceased; if close relatives must travel long distances to be present at the funeral/burial; or to avoid burial on Shabbat or another holy day. It should not be delayed longer than necessary. Special cases such as death by accident or suicide, or death of children less than 30 days of age should be referred to the Rabbi for guidance. It is inappropriate to make arrangements on Shabbat itself.

http://www.uscj.org/JewishLivingandLearning/Lifecycle/JewishFuneralPractice/GuidetoJewishFuneralPractice.aspx

And, my condolences.