About LienDeadline

Built for teams that cannot miss filing windows

We help construction finance and credit teams protect receivables with fast, state-accurate deadline calculations that fit directly into existing workflows.

State guides

Reviewed public date jurisdictions

Fast

Deadline calculations

24h

Typical support response

Our mission

Construction teams lose millions to avoidable missed deadlines. LienDeadline was created to make notice and lien timelines clear enough to execute with confidence at scale.

Why now

Legacy tools are often expensive, manual, or difficult to integrate. We built a focused platform that gives teams the speed and reliability they need without enterprise bloat.

Who we are

An independent software company

LienDeadline was founded in 2025 by Peter Hallander and Mathias Åsberg. We are an independent software company based in Poland, building deadline calculation and document tooling for construction credit, finance, and legal teams across the United States.

We are a small engineering team, not a law firm. The product is a mechanics lien and preliminary notice workflow platform with guides for all 50 states plus the District of Columbia, available as a web application and a REST API. Public supplier date calculations currently cover reviewed Florida and Kansas scenarios; other states and unsupported conditions require qualified review.

For company enquiries, partnerships, or press, contact peter@liendeadline.com.

Company: LienDeadline
Founded: 2025
Co-founders: Peter Hallander, Mathias Åsberg
Based in: Poland
Serving: United States, all 50 states + DC

Team

Peter Hallander

Co-founder. Leads product and operations.

Mathias Åsberg

Co-founder. Leads engineering and infrastructure.

LinkedIn GitHub

Company profile: LienDeadline on LinkedIn

What makes us different

Nationwide state guides

Guides for all 50 states plus DC, with reviewed public supplier date calculations for Florida and Kansas.

Speed in real workflows

Instant responses designed for high-volume invoice processing and operational teams.

Operational reliability

Clean API contracts, clear docs, and support built for implementation teams.

Practical partnership

We collaborate directly with credit and finance teams to improve real outcomes.

How we work

Operator-first product decisions

We prioritize clarity, speed, and predictable execution over legal-tech complexity.

Rules maintained continuously

State logic is reviewed and updated so your team avoids stale assumptions.

Focused scope

LienDeadline is built for deadline calculation and delivery, not generic case management.

Ready to protect your receivables?

Start with the free calculator and move to API automation when your team is ready.

Try free calculator Contact us