LNH LABS LLCNever get blindsided by your own numbers.
Meet buildclarity and Quartli.
buildclarityLIVE
QuartliLIVE
In their own words.
A contractor who finally sees where the money goes. A freelancer who stops guessing what they owe.
buildclarityA contractor's pain points — and what changes when the numbers finally make sense.
QuartliA self-employed individual who found exactly what they needed — and said so.
The Problem
Most self-employed people
fly blind.
The financial tools built for contractors were designed for accountants. The tax tools built for freelancers assume a simple return — no quarterly estimates, no self-employment tax, no pass-through income. I built tools for the people the standard software ignores.
Jobs look profitable — until they don't
Labor overruns, uncaptured overhead, and miscalculated markup quietly drain margin on every job. By the time the books close, it's too late to act.
Quarterly taxes are a guessing game
Freelancers and 1099 contractors routinely underpay or overpay estimated taxes because there's no simple, accurate tool built for how they actually earn.
Cash disappears without explanation
Revenue is steady, the schedule is full — but cash is always tight. The answer is usually in the overhead recovery rate. Most people who work for themselves never see it.
What I Build
Two products.
One vision.
Each product was born from years of watching real financial problems go unsolved.
buildclarity
getbuildclarity.com
The financial operating system for construction and trade contractors. Job costing, cash flow forecasting, overhead recovery, and AI-powered fractional controller insights — without bookkeeping or CRM complexity.
Quartli
quartli.com
Instant federal, state, and self-employment tax estimates for freelancers, gig workers, and pass-through income earners. Know exactly what you owe before the IRS does — free, no signup required.
Web app live now — mobile app coming soon.
In Practice
Required Markup — Hidden in Plain Sight
"I ran a painting contractor's numbers through buildclarity and found what years of QuickBooks reports hadn't shown: a required markup of 66.7% and pricing that fell well short of it. Once you see that number, everything makes sense. The cash was disappearing because the jobs were never priced to keep it."
Lena Hanna, CPA, EA, CIA · Founder, buildclarity
The Client
Commercial painting contractor — steady work, full schedule, consistently tight cash.
The Finding
Overhead recovery analysis revealed a required markup of 66.7%. Jobs had been priced below true cost for years.
The Outcome
The shortfall wasn't a slow season or a collections problem. It was a pricing problem — now visible, now fixable.
Founder
"The intersection of tax law, technology, and real business problems is what I've been mastering for years. I'm not watching from the sidelines. I'm building."
I'm a CPA, Enrolled Agent, and Certified Internal Auditor with deep hands-on tax and accounting experience. I built LNH Labs to create the tools I always wished existed for my clients — products born from years of watching real financial problems go unsolved.
Alongside LNH Labs, I run LNH CPA PLLC — a boutique accounting practice specializing in contractors and their complex tax situations.
My Approach
AI with Accountability
Building with AI in a regulated industry forces a question most builders skip: what happens when it's wrong? Tax and finance are not forgiving domains. Every tool I build includes a human review layer, defined escalation paths, and explicit boundaries on what the AI is and isn't authorized to do.
Domain-First
Every product starts with deep domain knowledge — not a technology looking for a problem. Real tax work informs every design decision.
Human in the Loop
I treat AI governance as a design constraint, not a compliance checkbox. Human oversight is built in from day one — not bolted on after the fact.
Ship and Iterate
Both products are live, deployed, and in active use. I build with real users, learn from real feedback, and improve continuously.
Get in Touch
Let's Talk.
I'd love to hear from you.
Whether you're a contractor looking for financial clarity, a freelancer navigating quarterly taxes, or someone interested in what I'm building — reach out.