What is Consolidation Rule?

Legal Definition
Practice, com. law. When a number of actions are brought on the same policy, it is the constant practice, for the purpose of saving costs, to consolidate them. by a rule of court or judge's order, which restrains the plaintiff from proceeding to trial in more than one, and binds the defendants in all the others to abide the event of that one; but this is done upon condition that the defendant shall not file any bill inequity, or bring any writ of error for delay. 2 Marsh. Ins. 701. For the history of this rule, vide Parke on Ins. xlix.; Marsh. Ins. B. 1, c. 1 6, s. 4. And see 1 John. Cas. 29; 19 Wend. 23; 13 Wend. 644 5 Cowen, 282,; 4 Cowen, 78; Id. 85; 1 John. 29; 9 John. 262.

2. The term consolidation seems to be rather misapplied in those cases, for in point of fact there is a mere stay of proceedings in all those cases but one. 3 Chit. Pr. 644. The rule is now extended to other cases: when several actions are brought on the same bond against several obligors, an order for a stay of proceedings in all but one will be made. 3 Chit. Pr. 645 3 Carr. & P. 58. See 4 Yeates, R. 128 3 S. & R. 262; Coleman, 62; 3 Rand. 481; 1 N. & M. 417, n.; 1 Cow n 89; 3 Wend. 441; 9 Wend. 451; M. 438, 440, n.; 5 Cowen, 282; 4 Halst. 335; 1 Dall. 145; 1 Browne, Appx. lxvii.; 1 Ala. R. 77; 4 Hill, R. 46; 19 Wend. 23 5 Yerg. 297; 7 Miss. 477; 2 Tayl. 200.,

3. The plaintiff may elect to join in the same suit several causes of action, in many cases, consistently with the rules of pleading, but having done so, his election is determined. He cannot ask the court to consolidate them; 3 Serg. & R. 266; but the court will sometimes, at the instance of the defendant, order it against the plaintiff. 1 Dall. Rep. 147, 355; 1 Yeates, 5; 4 Yeates, 128; 2 Arch. Pr. 180; 3 Serg. & R. 264.
-- Bouviers Law Dictionary
Legal Definition
In practice. A rule or order of court requiring a plaintiff who has instituted separate suits upon several claims against the same defendant, to consolidate them in one action, where that can be done consistently with the rules of pleading.
-- Black's Law Dictionary
Legal Definition
A rule or order for the consolidation of two or more actions in one. See 19 Wend. (N. Y.) 63.
-- Ballentine's Law Dictionary