Sarah,
Al is Absolutely Correct, so I'll summarize in Bullet fashion:
1. It's a Rental Agreement, not a Lease - you can get one from your attorney, or the Self Storage Association IN YOUR STATE (they are state specific)
2. No Deposit - a one-time, non-refundable Admin fee.
3. Like Al said, the beauty of Self-Storage is that it is SELF-STORAGE - DO NOT keep a key, or permit yourself to have access - otherwise, you create a bailment (liability) and you negate the protection of the lien laws, which permit you to lock them out, and auction their stuff off if they don't pay.
4. Month to Month is Standard
5. We "screen" by obtaining their Rent up front, and gather ALL their info, copies of Driver's license, employment, emails, etc. At the end of the day, your protection is an ironclad lease, and the lien-laws, which provide the ability to lock them out and sell their stuff.
Welcome to the BEAUTIFUL world of Self-Storage!
Cheers,