Chasing 'immigration lawyer Miami' first is how a firm burns a year
The obvious phrases in this metro are held by national operators and lead resellers, and they are not where your best files come from anyway.
Miami is the most competitive of the three South Florida search markets, and legal is the sharp end of it. Large firms and national brands bid and publish hard against the short, generic phrases. A single-office practice that makes those terms the first objective spends a year producing thin pages aimed at a fight it cannot win yet.
Look at what actually walks in the door. Almost none of it started with a two-word search. It started with someone typing a problem: a waiver denied, a deadline missed, a work permit that never arrived, a marriage petition filed while out of status. Those queries are longer, they are far less contested, and the person typing them has already decided they need a lawyer.
Order the work accordingly. Publish depth on the benefit types and procedural situations you handle, one cluster at a time, before spending anything on the head term. Authority earned on the specific pages is what eventually makes the general page competitive. It does not work in the other direction.
There is a discipline cost to this. It means declining to publish about practice areas you do not want, and it means the first six months of reporting look unimpressive to anyone reading rank positions instead of consultations.