This is an issue that I would recommend you consult with a tax professional where you can have a one-on-one conversation. There are many factors that need to be reviewed and ultimately a risk tolerance; as there is the potential for this to trigger an audit. Not that an audit is bad, it is that you need to be prepared before the audit to support your position.
The key to the deductibility of these expenses is the "origin of the claim" test in a Supreme Court decision. The object of this test is to determine the transaction or activity that resulted in the need for these legal expenses.
Your limited facts seem to indicate that the origin of the claim is business related. That is at least a start in the right direction, but needs to be further analyzed.
*A reminder that posts in a forum such as this do not constitute tax advice.
Also keep in mind the date of replies, as tax law changes.
