Biggest bang for my dollar

[Justin Custis]

Hello everyone.  I am looking for some solid ideas or direction as I am focusing on growth of my real estate company.  I have been flipping houses in my area now for the last 3 years because the market is very strong right now and the profits outweigh the long term growth.  I have a significant amount of cash that I would like to invest, but not sure what I should do.  I want to continue flipping a few per year as I really enjoy the projects, but I need additional rentals as I feel I'm trading hours for dollars.  I currently have 2 residential rentals, and not sure I want the headaches of multiple house rentals.  However, I am considering small apartment buildings.  I would like some additional passive income along with cash.  Any strategies you might suggest?  

Thank you,

Justin