Remember litigation is in business, like used car sales. You might approach the purchasing of legal services, especially litigation services, with at least some of the skepticism you would have if you were purchasing a used card. I am sure that several lawyers will read this and protest. I have talked with scores of inventors who have litigated their patents. A reasonable number of them will have some very positive things to say about their lawyer, but even more will have very negative things to say about lawyers they have dealt with.
Lawyers are necessary.
Some lawyers are very good at helping you. Such lawyers should be highly prized. But the general experienced of seasoned inventors is that there are a lot of lawyers out there who will do little more than take your money.