Professional hitmen don’t actually exist.
Sammy “The Bull” Gravano would probably disagree with you. He’d likely consider himself a professional since he admitted to involvement in 19 murders. Granted they were all mob related, and not “for hire” by anybody with a pile of cash and a grudge…
IANAL, but I believe these laws cover audio recording only. OP shouldn’t have an issue if they use something that records video only.
Think about it a second. I live in a two party consent state, but I see security & surveillance cameras everywhere. If two party consent was required for video then they wouldn’t be there.