This is a notice to all tenants that leasing office will be closed on [date] in observance of [holiday]. Please contact [name] and [company] for any immediate concerns or questions. Thank you and may everyone have a safe and happy [holiday Name]
Voice mail is a strictly worse medium than almost any alternative. You don’t get the opportunity to converse and ask questions back and forth like you do with a phone call; you can’t extract information efficiently from the message like you can with an email (the old “ugh, I have to listen to this entire message over again just to check one thing he said at the end” scenario).

Brief Out of Office Message. While it’s vital that you get the main points across in any vacation email, brevity is important. If you’re looking for something a little more to-the-point, try this one
But let’s talk out-of-office messages: overshares, excessive detail, the ones that self-aggrandize (I once had a coworker whose auto-replies often said he’d be in late because he “pulled an all-nighter” on various work projects, etc.), the ones that never get turned off, people who don’t use them at all, and other pet peeves.