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$(1)$ Sub Corporation is a wholly owned subsidiary of Parent Corporation.$$ Sub Corp has three assets: Cash $$20,000$; Inventory FMV $$200,000,$ AB $$140,000$; Land FMV $$180,000,$ AB $$210,000.$ Sub adopts a formal plan of liquidation and immediately thereafter distributes its assets to Parent.$$ Parent's adjusted basis in its Sub Corporation stock was equal to $$285,000.$ Parent had acquired Sub Corporation six years prior to the liquidation.$$

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What are the tax consequences of this liquidation to Parent Corp and Sub Corp?

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$(2)$ Sub Corporation is owned $95\%$ by Parent Corporation and $5\%$ by Brian an unrelated person.$$ Sub Corp has three assets: Equipment FMV $$20,000,$ AB $$6,000$; Inventory FMV $$200,000,$ AB $$140,000$; Land FMV $$180,000,$ AB $$210,000.$ Sub adopts a formal plan of liquidation and immediately thereafter distributes its assets to Parent.$$ Parent's adjusted basis in its Sub Corporation stock was equal to $$285,000$ and Brian$$s adjusted basis in his Sub stock was equal to $$13,500.$ Parent Corp and Brian had acquired their Sub Corporation stock six years prior to its liquidation.$$

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What are the tax consequences of this liquidation to Parent Corp, Brian and Sub Corp?

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$(3)$ Sub Corporation is owned $80\%$ by Parent Corporation and $20\%$ by Superior Corp, a wholly owned subsidiary of Parent Corp. $$Sub Corp has three assets: Equipment FMV $$80,000,$ AB $$56,000$; Inventory FMV $$145,000,$ AB $$110,000$; Land FMV $$175,000,$ AB $$200,000.$ Sub adopts a formal plan of liquidation and immediately thereafter distributes its assets to Parent and Superior.$$ Superior receives the Equipment and Parent receives the remainder of the assets. Parent's adjusted basis in its Sub Corporation stock was equal to $$240,000$ and Superior$$s adjusted basis in its Sub stock was equal to $$60,000.$ Parent Corp and Superior had acquired their Sub Corporation stock six years prior to its liquidation.$$

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What are the tax consequences of this liquidation to Parent Corp, Superior Corp and Sub Corp?

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$(4)$ Sub Corporation is owned $50\%$ by Parent Corporation and $50\%$ by Ultra Corp, a wholly owned subsidiary of Parent Corp.$$ Sub Corp has three assets: Equipment FMV $$55,000,$ AB $$36,000$; Inventory FMV $$145,000,$ AB $$110,000$; Land FMV $$200,000,$ AB $$220,000.$ Sub adopts a formal plan of liquidation and immediately thereafter distributes its assets to Parent and Ultra.$$ Ultra receives the Land and Parent receives the remainder of the assets. Parent's adjusted basis in its Sub Corporation stock was equal to $$215,000$ and Ultra$$s adjusted basis in its Sub stock was equal to $$215,000.$ Parent Corp and Ultra had acquired their Sub Corporation stock six years prior to its liquidation.$$

$$What are the tax consequences of this liquidation to Parent Corp, Ultra Corp and Sub Corp?

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