Any qualified plan audit experts?

[jasdlm]

Anyone here an expert in qualified plans/testing/auditing and could sell me a zoom or phone consult?  I'm trying to help someone with a PSP audit (not my client, but the client of a colleague for whom I have high regard).  There's a 'control group' issue, and I'd like to discuss what I think is the best strategy.  Yes, I have also reached out to try and find an ERISA attorney.  Thanks.