Portfolio.
Selected Work · Chris Archer

A record of AI systems I have actually built and put to work: inside a legal department, across a company, and in graduate coursework at Columbia. The through-line is the one Blackletter runs on. The judgment stays with the lawyer, and the tools carry it.

§ 1 · In Practice

Built and run inside a working legal department.

As general counsel and chief compliance officer of a heavy-civil construction firm, I have not advised on AI adoption from the outside. I have run it.

i
Role General Counsel & CCOTools Claude CoworkContext ~800-employee contractor

Legal department digital transformation

Led the AI transformation of the in-house legal department. Built contract-review "skills" in the Claude Cowork environment that apply the department's own markup standards to incoming documents, so the work that comes back looks the way the department produces it rather than the way a generic model would.

ii
Role General Counsel & CCOScope Company-wide

Company-wide AI adoption and governance

Drafted the policies and procedures governing how the company's roughly 800 employees may use AI. Founded and led a Claude Cowork pilot program, and built a range of agents and workflows around the tasks people actually do across the business.

iii
Role Executive sponsorScope Company-wide

Enterprise HRIS selection, implementation, and governance

Selected and implemented enterprise HRIS software for the organization, then led its rollout and ongoing governance. That work ran from the vendor evaluation through implementation to the rules for how the system is maintained and used.

iv
Status In progressContext Real estate management company

Digital transformation for a real estate management company

Currently leading a digital transformation for a real estate management company, bringing the same playbook-first approach to a new organization and a different set of workflows.

§ 2 · At Columbia

Graduate coursework in applied AI and machine learning.

An executive MBA at Columbia Business School, on the Dean's List, with coursework concentrated in applied AI and machine learning. Selected work:

Generative AI for Business

Deployment plan · RAG

Designed a Retrieval-Augmented Generation deployment plan for a heavy-civil contractor: a centralized, searchable policy repository that lets field managers ask policy questions in plain language, with the compliance department as the clearinghouse for what goes into it. The plan covered the business case, stakeholders, rollout, roadblocks, and governance.

Analytics in Action

Team capstone · Python, ML

Built a machine-learning system to match job candidates to roles for a hiring-technology startup. The work ran on text embeddings, feature engineering, and model evaluation to score how well a candidate fit a given job.

Business Analytics II & III

Applied machine learning

Applied machine-learning modeling across regression, classification, and neural networks, with hands-on feature engineering and model comparison.

AI & Virtual Reality

Emerging technology

Artificial intelligence and immersive technology, and where they fit into how a business operates.

Python for MBAs

Programming foundations

Programming foundations for working with data in Python.

The real engine isn't code or an LLM. It's the lawyer's knowledge driving it.

From "human (lawyer) in the loop"

§ 3 · Writing & Tools

Thinking in public, with tools to back it up.

I write "human (lawyer) in the loop," a Substack on how lawyers can put AI to use without handing over their judgment. Several posts document small tools I built to test the ideas rather than just assert them.

The one-cent contract editor

A customized indemnification-clause editor built on the OpenAI API for less than a cent per run. It reads a counterparty's markup, matches the edit to a scenario in my playbook spreadsheet, and returns both marching orders and a revised clause.

Read the build

DIY editor vs. the LLM

A head-to-head test of the spreadsheet-backed editor against a general-purpose model, to show where a documented playbook beats raw fluency. The DIY tool held its own by retrieving the human-crafted response once it matched the scenario.

Read the test

Custom case annotator

A proprietary case-annotation tool built in the Claude Cowork environment for a live matter, and a candid write-up of where it helped and where it needed a lawyer watching over it.

Read the review

The playbook, in columns and rows

The idea underneath all of it: taking the "art" of practice, the market-specific negotiation moves a model does not know, and reducing it to a structure a tool can actually use.

Read the piece
Get in Touch

Let's talk.

If any of this maps to what your practice is trying to do, I would want to understand how you work before recommending anything.