I have a client who recieved this advice from his marketing consultant: "If there are multiple h1 tags on a page, this can confuse Google and it may have a negative impact on the keyword rankings. If you could ask your web developer to go in and remove the h1 tags on the header images that would be helpful. This way it will be easier for Google to index your site and will help your keyword rankings."

How will it effect SEO to have multiple h1 tags on a page?