I see. Thank you for providing this additional information, Bruce.
Few types of contract are subject to state rescission laws and lease agreement are not one of them unfortunately, unless there is a provision in the lease permitting the parties to rescind it within a certain period of time.
However, since you just signed the contract yesterday, the tenant's damages would typically be limited if you informed them of your intend to terminate the lease right away. If they are unable to reasonably locate a property of a similar value by the move-in date, they could potentially sue for the difference in rent due to your breach of the agreement.
Because of the potential for damages, if you really wish to terminate the lease, it would normally be best to offer them a sum of money in return for them signing a release of claims for you, which is basically an agreement to accept the money you offer in settlement of any claims they might have against you, so they could not sue you for damages.
It may be worth contacting them to see whether they might agree to this arrangement if you do wish to be released from your contractual obligations under the lease.
Here is a link to the state governor's website which summarizes which types of contracts are subject to a cooling off period in the state of GA:
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