Moving into a new house

Q: What is the procedure of moving/settling into a newly bought house? Are there any duas/suras/prayers to read when entering or moving into a new house? What the practise of Prophet Peace be upon him, the Sahaba and the pious?

Inheritance

Q: 

  1. A women passes away, leaving behind a husband, 2 sons, a mother, 2 brothers and a sister. How will her estate be distributed according to ​Shari'ah?
  2. Another case in which a woman passes away, leaving behind 2 sons and a daughter. How will her estate be distributed according to Shari'ah?