Not surprised. If they’re audited pay up. Don’t count on some accountant to help them. He’ll promise all and by the time he’s through, they’ll owe thousands of dollars.
The Home School Legal Defense Fund (HSLDA) is a non-profit membership organization, and the annual dues of $120 pay for advice and representation. From what I've heard, they're good--i.e., they have a well-regarded record of successfully telling school officials and other bureaucrats to take a hike, often with just some coaching or a phone call.