Is anyone famililar with 203k loans/streamline rehab loans? Real Estate professional please help.?

I'm aware that this loan is people who are buying property that needs updating, foreclosure and homes that are in poor condtion. Does anyone know If this loan allows you to purchase a home that has major damage. Its a deceased family member put I want to purchase it and fix lots of damage. The roof has caved In. Will the 203k fha rehad loan allow a loan for a home with that much damage?