BizLeaseCheck
South Dakota guaranty guide

Personal Guaranty Guide for South Dakota

A borrower-focused guide to South Dakota guaranty exposure, SBA guarantees, collateral shortfall risk, and homestead-aware review.

Last reviewed: May 26, 2026 by the BizLeaseCheck Editorial Team

General information, not legal or financial advice.

Analyze a guaranty PDF All guaranty guides

Overview

South Dakota guaranties should be reviewed for unlimited liability, future advances, waiver of defenses, collateral pledges, and whether release terms are actually written into the guaranty.

South Dakota is not a community-property state. ECOA still limits spouse-signature requirements, and foreclosure or deficiency issues should be reviewed with the exact mortgage, sale, and guaranty documents.

Enforceability topics to check

Confession of judgment / cognovitNeeds lawyer verification

South Dakota commercial guaranty treatment of confession-of-judgment, cognovit, or warrant-of-attorney language should be verified by South Dakota counsel before relying on the clause.

South Dakota Codified Laws Title 15 — civil procedure
Deficiency judgments after collateral saleNeeds lawyer verification

South Dakota mortgage foreclosure and deficiency exposure depends on foreclosure procedure, sale process, collateral value, notices, and guaranty waivers.

South Dakota Codified Laws Chapter 21-47 — mortgage foreclosure
Spousal signature and ECOAHigh confidence

South Dakota is not a community-property state. ECOA / Regulation B still limits when a creditor can require a spouse or additional party to guarantee.

CFPB Regulation B / ECOA
Statute of limitationsHigh confidence

South Dakota generally provides six years for actions on contract obligations or liabilities, subject to demand, payment, acceleration, UCC, and guaranty-specific accrual issues.

SDCL § 15-2-13
Homestead exemptionHigh confidence

South Dakota has a homestead chapter that exempts qualifying homestead property from judicial sale and judgment lien, subject to statutory limits and exceptions.

SDCL Chapter 43-31

Borrower protections to negotiate

  • Strike confession-of-judgment, cognovit, and warrant-of-attorney wording unless South Dakota counsel approves it.
  • Cap guaranty exposure and exclude future advances, amendments, renewals, and affiliate debts without written consent.
  • Preserve foreclosure, notice, valuation, and commercially reasonable sale defenses.
  • Keep spouse signatures limited to legitimate collateral or credit-support needs under ECOA.
  • Require release after payoff, refinance, business sale, assignment, or agreed burn-off milestones.

Official resources

SBA Form 148 — Unconditional Guarantee SBA SOP 50 10 — Lender and Development Company Loan Programs 13 CFR § 120.160 — SBA loan conditions CFPB Regulation B / ECOA — 12 CFR Part 1002 SDCL § 15-2-13 — contract limitation SDCL Chapter 43-31 — homestead exemption SDCL Chapter 21-47 — mortgage foreclosure

Legal-review notes

Guide confidence marker: Needs lawyer verification.

  • South Dakota confession-of-judgment/cognovit treatment for commercial guaranties needs lawyer verification.
  • Have South Dakota counsel review deficiency and guarantor-waiver treatment under Chapter 21-47 and related foreclosure law.
  • Confirm current South Dakota homestead acreage, value, and lien-exception rules before publishing asset-protection claims.

Frequently asked questions

Can a South Dakota guaranty include confession-of-judgment language?

This guide does not make a broad enforceability claim. Any cognovit, confession, or warrant-of-attorney clause should be reviewed by South Dakota counsel.

Does South Dakota require my spouse to guarantee?

Not simply because the applicant is married. South Dakota is not a community-property state, and ECOA limits spouse-guaranty requirements.

What should South Dakota borrowers negotiate first?

Start with confession-clause removal, a guaranty cap, future-advance limits, foreclosure-defense preservation, and release mechanics.