According to an old curse, "May you be involved in a lawsuit in which you know you are right." Another old lawyer's proverb says, "A lawsuit is a fruit-tree planted in a lawyer's garden." When clients "who know they are right" meet the lawyer who sees their problem as "fruit-tree", there is a recipe for disaster.
Even before you meet with a law firm or another lawyer, you may wish to have a written, pre-dispute analysis of your matter performed. What are the legal issues? What facts need to be developed? Where are there potential weaknesses? What claims might you bring? Will you likely be met with counterclaims? What kinds of damages might you get? Are your expectations consistent with reality? There can be real value in having someone who is not expecting to litigate your matter give you an overview of your case. And, depending on how deep you want to go, I can arrange to have the appropriate non-testifying, consulting expert review your facts and provide an analysis.
Whether this analysis is done on a fixed fee or hourly basis, it will give you an independent point of reference, which you can use if you decide to go forward.