We would suggest you against modifying your local SEO plan in the midway of the SEO campaign. Doing so will affect the weeks of work done on optimizing your business locally. To ensure your comfort with the plans and strategies, they will be made considering your budget, elements (you choose), and result to be achieved.
However, if you still plan to modify your local SEO plan, you can always do so. You will just be required to issue a prior notice to the company and it will be done.