A tool you should use to really pinpoint yourself in Google maps, is the schema code. Putting a schema code into the source code of your website clearly describes your data to Google.
As an example of how this helps the search engines, schema code attached to your telephone number tells Google knows that that’s your telephone number; they won’t think it’s a fax.
By the same token, you put in your business hours, your address, your company name, and all the things – you can label all of these things through Schema.
Schema.org is the place to find the syntax.
One of the things I like to do using schema code is to take the schema for latitude and longitude and put in your actual latitude and longitude. Then, Google knows very precisely where your bar association or law firm is located. I don’t know if it helps or not, but I have to assume it helps because I’m getting the latitude and longitude out of Google maps. In any case, it’s not going to hurt.