The best resource to find out this information is to ask other local business owners in the area who they hired to create their website, and the total cost involved. If you find yourself loving a specific website that isn’t local, reach out to the owner and ask if they would mind sharing the contact information of their designer. They will appreciate the compliment, and most likely would share that information.
The words in the tag should be more than a description. They should provide a text equivalent of the image. In other words, the tag should include the same meaningful information that other users obtain by looking at the image. In the example of the mayor’s picture, adding an “alt” tag with the words “Photograph of Mayor Jane Smith” provides a meaningful description.