Am I civilly liable for trying to get someone fired?

I am currently facing criminal harassment charges for contacting a person's job and sharing information (all true) about their alcohol abuse and psychiatric issues in an attempt to get them fired. They were put on probation--not fired--and then terminated months later when the employer laid off 10% of it's workers. My lawyer has said I'm lucky to not be facing a civil suit for the lost job as well. If this were to be pursued, on what legal grounds could I be liable? What kind of damages could I face? Also this would be in Maryland court if it matters.