The SEO set up is a one time investment, and here's more information on what it involves: 

- on-site keyword integration (separate work from how a site is developed / coded)
- listing claiming and optimization 
- merging of duplicates (as needed) 
- keyword strategy & presentation to you
- microdata creation and integration 
- an (undisclosed) checklist of items to ensure the site and the online listings are working in the ideal way for your monthly SEO to perform best

You would have the flexibility to tell us when the first month of service would begin This date is determined by you when onboarding and filling out your payment authorization form. Monthly SEO involves backlink building, further website optimization, blogging, among many other items that hit at different times as the campaign matures. 

Here's more info on SEO: What is SEO?