Yes, you can invite multiple risk assessors via the Contractors module to conduct risk assessments for you. You can even limit what properties each assessor can see under your account.
The risk assessors you invite can join for free, so there is no barrier to getting your assessments done digitally.
Once the assessor completes the assessment, it will automatically be available in your account. From there, you can activate it. Activating it will automatically convert the actions into tasks and assign them to the right person for delegation and completion.