That’s like asking when is advertising your business finished.
Real estate SEO is never “finished”. It’s an ongoing process and to be successful requires regular attention and modification to produce the best results. The major search engines are continually modifying their search algorithms to provide their searchers better results. For real estate SEO, this means we continually review and re-analyze what we are doing to optimize our sites for the latest changes. To get more than their fair share of leads is what we want to accomplish.