I invest in companies where founder expertise and product-market fit is really strong. If the startup is an area that I don't have a strong expertise in I generally dive in personally to gather industry specific knowledge before moving ahead.
I avail myself to all founders that I invest in for anything around my expertise area and/or my network. I also strive to be a value-add investor to earn my right to invest in great companies & founders
I will syndicating all companies that I'm incredibly passionate about provided I'm able to get a decent allocation at the founders' permission.