Need advice to start investing

[Yvonne Acosta]

I have the opportunity to sell my single family house and get a least 50% of its original cost back. I want to use that money to buy a duplex. I am not sure if is better to put 20% down and rent it out and buy a single home for me and my family or use less than 20% and leave in one side for a year and buy another one after a year. What is the best way to invest that money? Thank you.