Definition
NAP refers to the strict consistency of a law firm's name, address, and phone number across every online platform, including its website, directories, and Google Business Profile, a uniformity that search engines read as a trust signal when they evaluate local rankings. Each mention of your firm on another site is called a citation.
In plain English
When Google crawls the web to rank your firm in local results, it checks that your contact details are identical everywhere. An address written "1200 Main Street, Suite 400" on your website and "1200 Main St. #400" on Yelp creates an inconsistency. A phone number with or without parentheses, or a firm name with or without its entity type (PLLC, LLP), can be enough to blur the picture.
These variations look harmless, but they hold back your visibility in the local pack. Google prefers firms whose identity and location it is sure of. Each inconsistency dilutes that certainty and benefits competitors with cleaner listings.
For a law firm, the stakes are higher because legal directories keep multiplying: your state bar directory, Avvo, Justia, and FindLaw, plus general platforms such as Yelp, Apple Business, and Bing Places. Each one may have captured a slightly different version of your details, often because different people at the firm created the listings at different times.
For a law firm
A family law firm in Chicago used "Martin & Associates" on its website, "Martin and Associates, P.C." in the state bar directory, and "Martin Associates Law" on its Google Business Profile. The result: it was invisible in searches for "divorce lawyer Lincoln Park," despite 15 years of practice in the neighborhood.
The firm then standardized its NAP on every directory, with the same punctuation, the same abbreviations, and a single phone format, (312) 555-0142. It climbed into the top three of the local pack within eight weeks. The cleanup took 23 updates across different platforms, but the impact on calls from new clients was immediate.
The Hendy figure
Across the law firms we work with, observed since 2024, we find an average of 7 NAP variations across the 15 main platforms we audit. In 60% of cases the inconsistency is in the punctuation of the address, and in 30% it is the presence or absence of the entity type in the firm name.
Most of these gaps are small formatting differences, which is why an audit finds them so often and why they are quick to fix once found.
Key takeaways
- NAP demands perfect consistency: same spelling, same punctuation, and same phone format on every online listing
- Inconsistencies directly hurt your position in local search results and in the local pack
- An audit of the 15 to 20 main platforms (website, Google, legal and general directories) often reveals 5 to 10 corrections for an established firm