On $1$ December $1984,$ Sim and Bree purchased a house as joint tenants, at a cost of $$100,000.$ On $31$ December $2006,$ when the house was valued at $$200,000,$ Bree purchased Sim's interest for $$110,000.$ Bree sold the house on $30$ June $2023$ for $$450,000.$ Advise Bree of the income tax implications, assuming: $1.$ The house was Bree's main residence; or $2.$ The house was let to tenants Considering the above scenarios what are some Case Laws and ATO Rulings $($in Australia$)$ that are relevant to each scenario? And how are they relevant?