Rule 18.Joinder of Claims and Remedies
Part IV: Parties · Last amended 1969 · Last verified July 16, 2026
Full Text of Rule 15-6-18
Plain-English Summary
Rule 15-6-18 gives a party bringing a claim broad freedom to combine everything they have against an opposing party into one action. Subdivision (a) allows a party asserting an original claim, counterclaim, cross-claim, or third-party claim to join as many claims as they have against that opposing party, whether the claims are legal or equitable, and whether they are pleaded as independent claims or in the alternative.
Subdivision (b) addresses a specific complication: some claims historically could not be pursued until another claim had already been resolved. The rule allows both claims to be joined in a single action, though the court can only grant relief consistent with the parties’ substantive rights — joinder does not change what remedy a party is entitled to. The rule gives a concrete example: a plaintiff can bring a claim for money together with a claim to set aside a conveyance as fraudulent, without first having to win a judgment on the money claim alone.
Frequently Asked Questions
Can I bring several unrelated claims against the same opposing party in one South Dakota lawsuit?
Yes. Rule 15-6-18(a) allows a party asserting a claim to join as many claims, legal or equitable, independent or alternative, as they have against that opposing party.
Do my joined claims need to be related to each other?
No. Rule 15-6-18(a) does not require the joined claims to share a transaction or occurrence; it allows joinder of as many claims as the party has against the opposing party.
Can I sue to set aside a fraudulent conveyance before winning my underlying money claim?
Yes. Rule 15-6-18(b) specifically allows a plaintiff to state a claim for money and a claim to set aside a fraudulent conveyance together, without first obtaining judgment on the money claim.
Does joining claims under this rule change what relief I can recover?
No. Rule 15-6-18(b) allows joinder of claims that once required sequential resolution, but the court grants relief only in accordance with the parties’ substantive rights.
Can I join both a legal claim and an equitable claim against the same defendant?
Yes. Rule 15-6-18(a) allows a party to join legal and equitable claims together against an opposing party.