Duplex Investing w/ Family

[Gabriel J.]

A family member wants to invest with me and let me borrow 50k. I was going to either use his money in two ways but wanted to know the best option. If there are other options let me know.

1st: Hard money- for the BRRRR method.

2nd. Down payment on Duplex($200k) and we split the net income.  Move-in ready and is rented. 

My only draw back is that my goal is financial freedom and setting up a way to build up a portfolio for retirement. I am in my late 20s with 2 kids. 

Is it worth it to split income if I am making next to nothing substantial in cash-flow? 

Or is it worth it to buy a property to BRRRR but would still be worth $60k ARV? Cash-flow would be moderate.

Any advice would help!