What are the contents of a death certificate?
Below is a sample death certificate. The information on a death certificate is all the personal information of the deceased individual (i.e. full name, address, social security number) and also the information relating to their death (cause of death, date of death, medical history).
http://www.cdc.gov/nchs/data/dvs/DEATH11-03final-acc.pdf
Do you need a death certificate to sell mom's house to sibling?
You need to probate the estate in order for title to pass to the heirs. The authority to sell the real estate will come either from the will or if the power wasn't granted in the will or if the decedent died intestate then the court must issue a license to sell the real estate. A death certificate will be filed in the estate. In some jurisdictions a death certificate will also need to be recorded in the land records. You could also wait until the probate proceeding has been completed. The heirs would then own the real estate and could all convey their interests to one sibling.