There are some firms that provide a mixture of testing, assessing and correcting. The person you hire to assess the corrective action doesn’t have to be tied to the correction team.
You should never use the same firm to do both to ensure there is no conflict of interest. Services can vary all around the nation.
The federal government provides training courses to asbestos professionals, with some local and state governments offering certification and training courses. Be sure you ask the asbestos professionals to provide proof of their approved training.
Every person who is on that team should have enrolled in some type of licensing asbestos program. Reach out to your local and state health department or the EPA to find local licensed professionals.