Choosing a lawyer can prove to be a stressful and daunting task. There are so many firms that are established and firms that are establishing all claiming that they are the top in their field. It is ultimately down to an individuals needs as to whether or not you pick a particular individual.
Assuming the situation is actually in need of a lawyer it is best to at least discuss with a few firms the severity of the claim. It could be a personal injury claim, a marriage dispute, property dispute or you could be declaring and all out war on a large corporation (that is not always advised as the costs would start to mount up).
You have to be comfortable discussing your legal affairs with your lawyer so you should go and meet the layer in person. Gauge who they actually are as a human being and ultimately work out the finer details of any possible hidden costs that may arise.