Corporate Counsel · Chicago

Practical legal counsel
for growing businesses.

Oak & Hill, P.C. provides experienced corporate legal counsel to startups, investment funds, and growing companies. Our services are clearly scoped and priced upfront, giving clients practical legal support without unpredictable hourly billing.

30+
Years in Practice
5,000+
Businesses Supported
Flat Fee
Priced Before We Begin
5
State Bar Admissions
Corporate Legal Services

Formation through exit,
at a defined price.

From formation and governance to contracts, employment matters, financings, and strategic transactions, Oak & Hill, P.C. helps businesses manage day-to-day legal needs and pivotal moments. Clients receive practical advice, clear recommendations, and support designed around their business objectives.

Corporate Formation
$1,500 – $3,000
Entity selection, state filings, operating agreements, bylaws, and EIN registration — a business properly formed and ready to operate.
Contract Drafting & Review
From $800
Vendor agreements, client contracts, NDAs, and partnership agreements — drafted from scratch or red-lined against what you have.
Outside General Counsel
From $2,500 / month
A senior attorney in your corner every month, without the cost of in-house counsel. Think of us as your legal department.
Mergers & Acquisitions
Quoted by Engagement
Diligence, LOI drafting, purchase agreement negotiation, and closing support for buyers, sellers, and management teams.
Employment Agreements
From $900
Offer letters, executive agreements, and restrictive covenant packages that hold up when they matter.
Venture Financing & SAFEs
From $5,000
SAFEs, convertible notes, and priced rounds — prepared, negotiated, and closed with a cap table that stays clean.
Who We Serve

Counsel built around
your stage and industry.

Oak & Hill, P.C. works with founders, management teams, investors, and established businesses that need experienced legal counsel without the cost or complexity of a traditional large-firm relationship.

Startups & Emerging Companies

From choosing and forming the right entity through fundraising, contracts, hiring, governance, and exit planning, we help founders build on a strong legal foundation.

Growing & Established Businesses

Day-to-day corporate guidance, contract support, employment advice, strategic transactions, and outside general counsel services for companies navigating growth and change.

Venture Capital & Private Equity Funds

We advise fund sponsors and investors on fund formation, special-purpose vehicles, portfolio investments, due diligence, governance, and investor matters.

AI & Technology Companies

We help businesses developing or using artificial intelligence address data rights, intellectual property, contracts, governance, regulatory exposure, and responsible AI practices.

Life Sciences & Biotech

We support companies through formation, financing, licensing, clinical and manufacturing agreements, strategic partnerships, and acquisition.

Agencies, Professional Services & Consumer Brands

Client and vendor contracts, intellectual property, employment matters, promotions, distribution, brand partnerships, and ongoing corporate needs.

Whether you need counsel for a single transaction or an ongoing legal partner, Oak & Hill, P.C. provides sophisticated legal support in a practical, responsive, and clearly priced format.

Leonard Nannarone, Founder and Managing Partner of Oak & Hill, P.C.
Experience & Differentiators

Leonard Nannarone

Founder and Managing Partner

More than 30 years advising startups, growing businesses, investment funds, and established companies — with a practice spanning general corporate law, mergers and acquisitions, outside general counsel services, contract drafting and negotiation, securities law, venture financing, and employment matters.

Before entering private practice, Leonard worked at Kirkland & Ellis and Intel Corporation, where he participated in major strategic transactions and investments. His clients have been acquired by companies including Uber, Yahoo, Google, Apple, and major pharmaceutical companies.

30+ YearsIn practice
5 StatesCA · RI · IL · NY · MA
Kirkland & EllisPrior experience
Meet the Team
Specialty Practice

AI Specialty Practice Area.

Artificial intelligence creates new opportunities — and new legal questions. Oak & Hill, P.C. helps businesses address AI governance, data rights, intellectual property, contracts, regulatory exposure, and responsible adoption through practical legal guidance and ARIA Certification.

Explore Our AI Specialty Practice
Data rights, licensing, and provenance review
AI-specific contract and liability provisions
IP and output ownership
Internal AI governance and policy
Regulatory exposure assessment
ARIA Certification — $5,000 flat fee
Representative Experience

Practical experience across
the business lifecycle.

Startup-to-Exit Counsel

Guided technology and life-sciences companies from formation through financing, commercial growth, and acquisition by major strategic buyers.

Outside General Counsel

Served as ongoing outside general counsel to venture funds, marketing agencies, consumer-product companies, and growing technology businesses.

Mergers & Acquisitions

Advised buyers, sellers, investors, and management teams on domestic and international acquisitions, strategic investments, and related negotiations.

Venture Capital & Private Equity

Formed investment funds and special-purpose vehicles, prepared offering materials, supported portfolio investments, and advised on investor relations and governance.

Get Started

Legal guidance built
around your business.

Tell us where your business is headed and what legal support you need. We will help you identify a practical path forward.

With more than 30 years of legal experience and work supporting thousands of businesses, Oak & Hill, P.C. understands the legal and commercial issues companies face from formation through growth and exit. Engagements are clearly defined and priced, so clients know what to expect and can make decisions with confidence.

Schedule a Call

Your legal partner for
every stage of growth.

Tell us a little about your business and the legal support you need. Complete the form to request a complimentary strategy session.

Submitting this form does not create an attorney-client relationship.