John & Mary died in an accident leaving their only surviving child Avery. Neither John nor Mary had a valid will. So, Avery has applied to the courts to be appointed estate administrator. Related to the estate, what financial transactions can Avery legally undertake, before receiving the courts approval?

Sell the family home registered jointly to her parents

Negotiate an extension of the mortgage on her parents home

Use funds in her parents bank accounts to make loan payments that are due

none