Best Practices for validating pro-forma from long distance?

[Andrew Shrout]

Hi guys, I'm a new investor. I manage some stuff out in California, but I'm looking to buy some more property out of state. I'm wondering any tips, or tools people use to help validate local rents? I'm trying to determine ranges of realistic asking prices so I can determine good entry prices. I've tried calling local managers to some success but hopefully some people on here have some tips.