What is a good ROI range?

[Alex Moseman]

I know that the answer is always it depends, but I am very curious what a good ROI C-on-C range is? Is it just go as high as possible? I am trying to learn as much as I can while I am saving up to invest next year. My goal is to have a million dollar net worth in 10 years through buy and rent duplex/triplex. I have a stable job, but am hoping to keep my real estate holdings cash flow positive and contained. Is beating the 10 year S&P mainly all we have to work with, or does the ROI actually differentiate your analysis and if so how?