Always lawyer up. As we’ve learned in the last few years, the FBI loves to catch people “lying” to agents as a precursor to persecuting them for political reasons.
Unless you are sitting on some real family wealth this idea that you can just "lawyer up" against the friggin' FBI is just laughable. Might as well advise people to "always call the president and get him on side".
"Always"! Like it's checking tire pressure before a long drive or something. "Oh yeah I always bring a couple of $1000/hr lawyers with me to important meetings. Better safe than sorry. What, you don't?"