Anas and Lea have been friends since childhood. They attended the same university, graduated together and are now employed at the same establishment in Kota Kinabalu, Sabah. Due to COVID 19, they were required to work three days a week at the office and two days at home. As a result, their salary has been reduced by 30%. Jane, Anas' sister, owned three apartment units near Penampang, Sabah, where Anas stayed for free in one of them. Tina and Max, a newly married couple, and Niko, an unmarried man, rented the other two units. Anas is responsible for monitoring and managing the rented apartments, finding potential tenants, and dealing with rent-agreement matters on behalf of Jane. The tenants, however, need to pay the rent directly into Jane's account monthly. Niko lost his job during the COVID-19 outbreak and could not continue renting the apartment. Therefore, after giving a month notice and settling all utility bills as per the rental agreement, he vacated the apartment.

Advise all parties concerned of the legal implications of their situations with reference to the ContractsAct 1950 and relevant cases, Analyse and answer the question following the IRAC format.