Yes, Local Services Ads can help small law firms get more visibility in local search, especially when potential clients are actively looking for legal help. LSA puts eligible firms in front of high-intent customers and gives them a direct way to call or contact the firm.
How much visibility you get depends on factors like your location, practice areas, competition, budget, reviews, and profile quality. A smaller firm can still compete with larger firms if its LSA profile is strong and it serves the right local searches.
The key is to focus on the practice areas and locations where you want clients, then track whether the added visibility is actually producing qualified leads and new cases.