Home investment split

[Nazia Feroz]

Hi. I bought a home with my sister and my dad. We each put down equally for down payment and equally shared the mortgage payments until I moved to another country. I stopped making the monthly payments when I moved. My dad and sister continued with 50% each. We want to sell the house now and need to know how to divide the capital gains. After selling the property we are looking at $300k in gains. Or if my dad and sister want to buy me out, how much should I get?