I’m not going to lie to you . . . the law isn’t great when it comes to requiring union-busting law firms and direct persuaders to disclose information about their activities, but it is (usually) possible to at least figure out a few key pieces of information.

For example, you may be able to find out how much these consultants are paid per hour (often many hundreds of dollars), or how much the company has paid them over the course of a campaign. It might catch the attention of undecided workers if, for instance, the company claims it doesn’t have a penny to pay a fair wage, but it just spent $200,000 on pricey consultants to tell them how to vote. Knowing which campaigns a consultant has worked on in the past can also help you prepare for what’s coming down the pike. Here’s how you can be prepared.