Intention to Create Legal Relations

Question 1: Richard, an impoverished university student, and his millionaire father enter into an arrangement where Richard agrees that he will keep the front- and backyards of the family property mowed, and he will 'do a bit' to keep the gardens looking tidy. In return, his father agrees to pay him a weekly allowance of $200. His father had previously used a garden contractor to do the job and paid him $350. They live on a one-hectare property, and the mowing alone takes half a day a week. After four weeks, Richard's father tells him that he can't afford to pay $200 a week. He says that Richard should be doing the work for nothing, as it is the responsibility of the whole family to look after the property; besides, he says, Richard is getting free board and lodging. Advise Richard.