Yes, Pro, Premier and Accountant can all access the same data file.
Resolution for '2018 quickbooks issue: 'can i restore a 2018 quickbooks premier file to my 2018 quickbooks pro' available: Yes.
The 2018 quickbooks issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the 2018 quickbooks issue yourself by looking for a resolution described in the article. If it is a complex 2018 quickbooks issue or you are unable to solve the issue, you may contact us by clicking here or by using other 2018 quickbooks support options.
For more information about resolving issues related to 2018 quickbooks in Quickbooks/QBO or to get support for the issue 'can i restore a 2018 quickbooks premier file to my 2018 quickbooks pro', click the link below: