To allow me the ability to connect to your AWS account to perform an audit function, I will need to be granted access to your account. A view-only role (without any access to your sensitive data) need to be created on your individual AWS account.
Simply create a new Cloudformation stack. Feel free to update the role name and the external id. Once the stack is created, you will need to provide me with the Role ARN and the External ID that was created. You can find this in the Outputs tab of the stack.