Merger in ownership

Confusion is the intended legal term. You may check the following references:


http://legal-dictionary.thefreedictionary.com/confusion
Confusion

The combination or mixture of two things; the process of commingling.

Confusion has been used synonymously with merger, meaning a union of two separate entities that eliminates clear boundaries. Confusion of rights, for example, is a combination of the rights of debtor and creditor in the same individual. Similarly, a confusion of titles exists when two titles to the same property combine in the same person. A confusion of debts is a method of eliminating a debt or canceling it. This may occur, for example, upon the death of a creditor when the debtor is the creditor's heir.


http://thelawdictionary.org/confusion-of-debts/

000000000000

consolidation / unification of accounts