Sean William Sinnamon

What this record tells you

Sean William Sinnamon holds Florida licence MRSA5753, a MRSA classification which authorises work as a licensed mold assessor. An "R" prefix means the licence is registered, which limits work to the local jurisdictions that accepted it rather than the whole state.

This licence was first issued in 2026, which makes it one of the newer licences for the trade in this area. That is 0 years of continuous licensure.

Sean William Sinnamon is one of 2 active mold inspection licences registered to an address in Tavernier, so you have local alternatives to compare quotes against.

The licence is recorded as expiring on 07/31/2028. Florida licences renew on a fixed cycle, and a licence that is not renewed moves to delinquent status — which is why the expiry date matters if you are planning work close to that date. Confirm the current status on the state portal before signing a contract.

Before you hire Sean William Sinnamon

• Re-check licence MRSA5753 on the DBPR portal — status can change any day.
• Ask for a current certificate of liability insurance and workers' compensation, issued to you directly by their insurer.
• Confirm the name on your contract matches Sean William Sinnamon or its qualifying agent, Sean William Sinnamon.
• Compare at least three written quotes from other mold inspection contractors in Key West & The Keys.
• Confirm in writing that the contractor — not you — pulls the building permit.