FICO scoring is supposed to only take into account inquiries that are the result of an application for credit by you, so-called "hard pulls." Creditors are interested in this information when you apply, and can view it. But the law requires that you (but not anyone else) are disclosed every time your credit report is provided to someone else, even if this was not an application for credit. These are "soft pulls" that won't affect your score.
The inquiry you noted, from a landlord, is one such type. The most common is probably pulls of your credit report from companies you already have accounts with, followed by pulls from advertisers who make pre-approved credit offers to consumers who have not opted out of this.
