When is it too early to list a rental property

[Chris G.]

I was just wondering when it is too early to advertise a rental. For example if a tenants lease ends 1/31 should I list it but have it shown not being available until sometime in early February. I see both pros and cons of waiting or posting now. Also my boss wants showings to happen currently even when tenants are still living there meaning I need to set up a time with both the prospect and tenant to show the unit/ condo. I personally think that's a bit weird but I'd like anyone else's experience on this.