Get your taxes done using TurboTax

It depends.  If you need to talk to a CPA about your 2019 tax return, the LIVE product is the way to go.  They may be able to give you additional advice regarding your 2018 tax return, but they will not have access to see it or go through it with you.

Revoking an election generally requires a private letter ruling from IRS, which can be rather expensive and time-consuming.  Here is a link that provides more details:  IRS Letter Rulings Etc.  Please see Section 5, paragraph 6.16 regarding Revoking Elections.  I have provided a screenshot below of the applicable section of the above IRS Publication.