Question 1: Prove client tax return was filled timely. Find a case that the tax payer had to show that they filed a tax return. (They have no Proof of a tax return)

Question 2: Ccorp merge with single member LLC, after merge the LLC does not pay employment taxes, how's liability?

Question 3: What happens when a spouse or other third party co-owns a home with someone. Who has tax Federal Income tax liabilities. What can the IRS do?