When to take security deposit to hold rental

[John B.]

My SFR will not be available until Sept 1st but I plan to sign lease much sooner. How do I "hold" this for the tenant and safely take it off the advertising market. Can I / should I go ahead and ask for the security deposit now, along with the signed lease so that I can take down my listing? Then collect 1st months rent on move-in day? Just trying to manage the logistics of this since we're over a month away from availability. Thanks in advance everyone.