Looking for Data, First Investment

[Jagpreet Singh]

Hi, I am looking to invest in my first rental property in January 2017. We have narrowed it down to the state. Missouri. How do I research further on counties, taxes and average rent compared to property values? How do I find out what is average time to rent in those areas? Also, I am looking for a Property Management company to manage the property for me. 

I am taking this investment as a learning experience and plan to close the year out with atleast 10 properties. 

Thank you for your feedback.