short answer

1,Baillie sold lumber to Kincaid, who agreed to pay $5,000. Later, having financial problems, Kincaid paid 35 percent of the $5,000 in a check and wrote "PAID IN FULL" on the check. Ballie cashed the check. Can Baillie now recover the 65 percent of the original amount due? Why or why not?

2,Pursuant to an IRS investigation, a summons was issued to the taxpayer demanding the taxpayer deliver all his business records to the IRS, some of which are incriminating. What constitutional amendment defense could the taxpayer raise?