Does anyone know pro bono attorneys who handle employment issues in Virginia ?

This is in regards to Dept. of Energy security clearances.
Your probability of sucessfully sueing the DOE over the removal or refusal to grant a security clearance,

Are zero.

When it comes to national payment, the courts almost always side with the government.

I doubt you will find a advocate, willing to take the case, even if you could wages them yourself.
Call your county bar association,