Brian, a widowed $80-$year$-$old man residing in the coastal town of Broome, Western Australia, lost his beloved wife, Tshering, in August $2023.$ Overwhelmed by grief and struggling to live alone, Brian reached out to his granddaughter, Kareena, who was studying in the city of Perth. In an attempt to cope with his loss, Brian promised to pay Kareena $$50,000$ if she agreed to take a break from her University studies for a year and move to Broome to live with him, providing him with company and emotional support during this difficult period. After discussing the details with her grandfather, Kareena accepted the offer, putting her studies on hold and relocating to Broome to fulfill the arrangement.

For the next six months, Kareena dedicated herself to caring for Brian and being there for him. However, conflicts eventually arose between the two, leading Brian to ask Kareena to leave his home and informing her that he would not honour the agreement to pay her $$50,000.$

Feeling disappointed by Brian's decision to back out on their agreement, Kareena is seeking advice on whether she has any legal recourse to claim the promised amount.

Answer using the IRAC method.