Accompanying documents and fees also vary. A few private individuals don't charge for applying (and they can't use the copyrighted form for Realtors), but most charge between $30 and $50 per individual.
Before you download a form to apply, check with the property manager on what form they use and will accept.
If you're looking for a form to use for your own property, I'm afraid both the TAR and the TAA form are intellectual property of the associations and can't be used unless you're a member. I don't know of any better forms on the web.