What are 4 Dispute Resolution Methods?

Context: Sam, 25 years old, was struggling to find work in Calgary. She moved in with her aunt and uncle to save money, after a fairly brief discussion in which Sam's uncle observed that living together would give everyone an opportunity to save on expenses. Sam freely made use of all the amenities at her aunt and uncle's home, but never offered any rent or financial contributions. Feeling awkward, despite their own limited income, her aunt and uncle wait two and a half years before emailing Sam a bill for rent, food charges and repayment of assorted expenses. Sam moves out, refuses to pay anything and stops speaking to her aunt and uncle. Her aunt and uncle are considering suing Sam.

Question:

i. List and define four dispute resolution methods.

ii. Which dispute resolution method would be most suitable for Sam and her family? Why?

iii. Which dispute resolution method would be least suitable for Sam and her family? Why?