@Joey Allison Your question seems to be mostly related to personal preference or risk tolerance based on your response. Everybody will have a different answer for you. If you're focused solely on what generates the greatest return, then you are correct, you will likely make more reinvesting the money into something (REI, business, stocks, etc.) assuming you don't invest poorly, which leads into your risk tolerance and knowledge. There are a lot of variables and options that would be hard for anybody to consider unless we were in your shoes and saw the whole picture.
If you're looking for ideas, one potential option to consider is whether or not you can significantly change the cashflow by investing a bit in the properties you already own. That might also increase the value of the homes, allowing you to have significant realized and unrealized earnings when considering the amount invested. You would still have to figure out what to do with majority of the money though. Only thing I wouldn't do is leave it in the bank earning nothing or some insignificant amount of interest.