This is laughable.SEO shouldn't be your first thought, especially if you're JUST starting out (unless you're doing the SEO yourself*).You need to be focused on getting your "hands dirty" and (actively) talking to sellers (either via cold calling, direct mail or Bandit signs).Ignore any vendors who just swear that their method is the absolute best method.As for your original question: ListSource is absolutely amazing for building a list with ;)* SEO should be supplemental to your business, and while search engine (Google) algorithms are ever-changing, it's nothing that you need to pay a "guru" thousands of dollars for.