What ROI do passive real estate investors look for?

[Account Closed]

In the next year, I'm planning on starting a syndicate for fix & flip projects. I understand that presenting great deals to investors is the most important part of being a syndicator. Through the use of VA's, realtors, and online marketing, I've built a steady pipeline of single family properties(priced around 60% ARV minus repairs) coming across my desk every week. I'm currently funding deals with my own money in order to build a track record before soliciting funding from accredited investors.

As a passive investor, what ROI would blow your socks off and make want to jump on the opportunity? Assuming the timeline from investing to receiving your returns is 6 months.