As a realtor, I cannot provide opinions on schools and crime, but I can direct you to websites that have that information:
schools:
http://www.ncreportcard.org/src/
crime:
www.charmeck.org (go to Police section for crime stat)
South Charlotte and the Union County areas are beautiful -- certainly worth a look when you get here
Best of luck to you!
P.S. You may have better luck moving this to the Charlotte thread...