An important rule known as the "mailbox rule" says that an acceptance is effective once it is put in the mailbox. The ASIS contract verbiage to cancel a contract at their sole discretion can be used to get out of a deal without consequences.All the buyer has to do here to cancel the contract is send written notice to the seller before their inspection period ends. To establish that the offer was not withdrawn, (claimant) must prove one of the following: (Defendant) did not withdraw the offer; or. Getting out of a Florida real estate contract may seem stressful, seek the help of a trusted Florida real estate lawyer today. The 3-day contract law Florida follows allows for 72 hours to cancel a contract under most circumstances. Revocation of offer case law can occur any time before an offer is accepted. You can withdraw your offer in many cases up to the closing date. It's not a guarantee that the place will pass inspection. Read Section 672.206 - Offer and acceptance in formation of contract, Fla. Stat.