Best way to begin and make the most of money

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I have no debt and a great credit score. Ready to invest 50-60k on my first rental. Not sure if I should house hack with a lower down payment, or put 20 percent down on a multifamily to get better cash flow with todays rates.. if  im even able to do that with not owing anything yet.. or If i should keep saving and try to buy bad homes to fix and flip.. I'd like to be free by 30.. thats about 7 years.. I think me and my fiance can save around 50k or so a year we are both very frugal and make great money.. Just not sure what my first step should be.. best way to leverage my money.. is it possible to get a property each year if I have the down payment? I know the debt to income would matter just wasnt sure if that was possible. Thanks