Banks Beware: Sureties Can Leapfrog Your Security Interest

All banks operating in Minnesota must be aware of the recent decision in United Prairie Bank v. Molnau Trucking LLC. In that case, the Minnesota Supreme Court significantly reshaped the priority landscape between secured lenders and sureties in the public construction market. In brief, the Court held that a performing surety’s rights take priority over a bank’s perfected security interest in contract funds—even where the bank was first-in-time under the UCC.

For banks lending to contractors, this decision highlights a new material and underappreciated risk when borrowers engage in bonded public works projects.

Background Facts

The facts of the case are fairly straightforward: Molnau Trucking obtained loans from the secured bank, granting the bank a perfected security interest in its accounts receivable. Separately, Molnau entered into public works contracts requiring payment bonds issued by a surety (Granite Re, Inc.). When Molnau defaulted on both its loan obligations and its obligations to pay subcontractors and suppliers, Granite paid those claims under its bonds.

A dispute arose over remaining contract funds (including retainage). The bank claimed priority under its first-in-time perfected UCC security interest; the surety claimed priority through “equitable subrogation.”

Key Holdings

The Minnesota Supreme Court ruled in favor of the surety, holding:

• A performing surety is entitled to equitable subrogation regardless of its notice or failure to investigate UCC filings;
• A surety’s rights have priority over a secured lender over bonded contract funds, absent a “superior equity.”

The Court emphasized that a surety, having paid laborers and suppliers under compulsion of its bond, steps into the shoes of those parties (and the project owner), giving it rights superior to a lender whose claim derives only from the contractor.

The “Superior Equity” Exception

Not all is lost, though. The Supreme Court reaffirmed a narrow exception under which a lender may still prevail—often referred to as the “superior equity” scenario. A bank can obtain priority over a surety only if it effectively acts like a surety, meaning:

• The bank is obligated (not merely permitted) to advance funds;
• The funds are specifically earmarked for payment of laborers and suppliers; and
• The funds are actually used solely for those purposes.

General working capital loans—even if partially used on a bonded project—are insufficient. Thus, a bank must be able to document and prove the above requirements to meet the “superior equity” exception.

Practical Takeaways for Banks

This decision introduces meaningful priority risk for lenders financing contractors engaged in public works. Banks should consider the following risk-mitigation strategies:

• Loan documents should require borrower disclosure of bonded public projects and restrict entry into such projects without lender notice and consent.
• Where public projects are anticipated:
  • Engage with the surety at underwriting or project inception;
  • Seek subordination or intercreditor agreements where feasible;
  • Clarify expectations around contract funds and priority.
• If financing project costs:
  • Tie advances to specific obligations (labor/material payments);
  • Require segregation and tracing of funds;
  • Consider mechanisms (e.g., controlled disbursements) ensuring funds are used solely for bonded obligations.
• Accounts receivable arising from public works projects may be impaired or effectively unavailable as collateral in a default scenario. Thus, banks should require:
  • Affirmative reporting of bonded contracts and claims activity;
  • Restrictions on assignment of contract proceeds;
  • Enhanced monitoring of receivables tied to public entities.
• Given diminished priority, banks may need to rely more heavily on:
  • Equipment, real estate, or non-project collateral;
  • Guarantees or additional credit enhancements.

Summary

The Supreme Court’s decision underscores that traditional UCC-based priority assumptions do not hold in the public construction surety context, except in very narrow circumstances as discussed above. For lenders and credit officers, diligence, structuring, and coordination with sureties or underwriting to not include bonded A/R in certain situations are now critical to preserving expected collateral value and properly evaluate the credit at origination.

Banks navigating these issues after origination should work closely with experienced counsel to evaluate risk, collateral exposure, and overall credit structure to avail themselves of the exception identified by the Supreme Court—or contract and/or underwrite around it.