OLSS
OLSS is a privately-held, mid-sized full-service New Jersey law firm (est. 1975) providing litigation, tax/trusts/estates, corporate, real estate, and professional-practice legal services to middle-market companies, closely-held businesses, and high-net-worth individuals across the Northeast.
- Company typePrivate
- Founded1975
- HeadquartersMorristown, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What OLSS does
OLSS (Orloff, Lowenbach, Stifelman & Siegel, P.A.) is a New Jersey-based full-service law firm founded in 1975, organized as a Professional Association and headquartered in Morristown, NJ, with additional offices in New York City (5 Penn Plaza) and Philadelphia (2929 Arch Street). The firm operates across five core practice areas: Litigation and Dispute Resolution (complex commercial, fiduciary, class action defense, appellate, and ADR), Tax/Trusts and Estates (estate planning and administration), Corporate (M&A, entity formation, outside general counsel for middle-market companies), Real Estate (acquisitions, dispositions, development, and finance), and Services to Professional Practices (legal services for attorneys, accountants, and other licensed professionals). Its clients are primarily established middle-market private companies, closely-held businesses, business owners, executives, and high-net-worth individuals across the Northeast U.S., with secondary exposure to entrepreneurial ventures.
The firm positions itself as a forward-thinking, cost-effective alternative to large law firms, emphasizing a collaborative culture, direct client access to senior attorneys, and a cost structure lower than many top-tier New Jersey firms. Leadership includes Co-President Adam M. Haberfield and a named shareholder group (Laurence B. Orloff, Philip C. Corbo, Craig A. Ollenschleger, Xiao Sun, Laura N. Wilensky, Alexander S. Firsichbaum, Marc Singer, Jeffrey M. Garrod, David Gorvitz). The firm is privately held by its attorney shareholders with no external or PE ownership, and has no subsidiaries, public ticker, or disclosed revenue.
Revenue is generated through traditional billable-hour fee structures typical of mid-sized law firms, with rates not publicly disclosed. The firm markets through its website (olss.com), LinkedIn, client alerts/blog posts, and speaking engagements. Its technology stack is built on a third-party CMS (Animus Rex) and the firm makes general claims of "state-of-the-art technological capabilities" without disclosed specifics, and shows no AI/ML capability signals in the source material. Peer recognition includes Best Lawyers in America, Martindale-Hubbell AV Preeminent, Super Lawyers, Rising Stars, and a 2022 New Leaders of the Bar (NJ Law Journal) listing.
OLSS firmographics
Firmographics- Name
- OLSS
- Legal name
- Orloff, Lowenbach, Stifelman & Siegel, P.A.
- Website
- https://olss.com
- Company type
- Private
- Founded year
- 1975
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- OLSS is a privately-held, mid-sized full-service New Jersey law firm (est. 1975) providing litigation, tax/trusts/estates, corporate, real estate, and professional-practice legal services to middle-market companies, closely-held businesses, and high-net-worth individuals across the Northeast.
- Ownership category
- akta.pro rank
OLSS industry classification
Industry- Product category
- Legal Services
- NAICS
- Offices of Lawyers (541110), Offices of Lawyers (54111)
- SIC
- Services-Legal Services (8111)
- akta.pro primary industry
- eDiscovery, Litigation Support & Expert Witness Services (BPAKAHAD)
- akta.pro secondary industry
- eDiscovery, Litigation Support & Legal Hold (BPAEAPAE)
Keywords
Where OLSS is headquartered
LocationHeadquarters
- HQ city
- Morristown
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
OLSS business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Distribution channels1 record
Marketing channels4 records
OLSS product offering
Product offeringCore offering
OLSS is a full-service mid-sized law firm providing legal representation across five practice areas: Litigation and Dispute Resolution (commercial, business, and class action litigation including trial and appellate practice); Tax, Trusts and Estates (estate planning, trust administration, and wealth transfer); Corporate (M&A, entity formation, and outside general counsel); Real Estate (commercial property transactions and financing); and Services to Professional Practices (counsel for attorneys, accountants, and other licensed professionals). The firm serves business clients, business owners, executives, and high-net-worth individuals through offices in New Jersey, New York, and Pennsylvania.
Product overview
OLSS is a forward-thinking law firm offering a collaborative alternative to large law firms. The firm provides legal services organized into five primary practice areas: (1) Litigation and Dispute Resolution, covering commercial litigation, class action defense, real estate litigation, and appellate practice; (2) Tax, Trusts and Estates, providing estate planning and administration services; (3) Corporate, offering transactional and M&A services; (4) Real Estate, covering commercial property transactions and financing; and (5) Services to Professional Practices for licensed professionals. The firm maintains offices in New Jersey (Morristown - primary), New York, and Pennsylvania (Philadelphia).
Differentiator
Problem solved
Functional benefit
Products and services
- Litigation and Dispute Resolution Comprehensive litigation services handling complex commercial, business, and personal disputes in state and federal courts, including trial and appellate practice, class action defense, and alternative dispute resolution. For business clients, business owners, executives, and individuals requiring sophisticated representation.
- Tax, Trusts and Estates Estate planning and administration services including wealth transfer, trust administration, and related tax matters for individuals and families. For high-net-worth individuals, business owners, and families requiring sophisticated estate planning.
- Corporate Corporate transactional services including mergers and acquisitions, entity formation, shareholder agreements, and outside general counsel for middle-market private companies. For closely-held businesses and middle-market companies needing transactional counsel.
- Real Estate Commercial real estate services covering acquisitions, dispositions, development, investment, and finance of multi-family residential, office, retail, hotel, mixed-use, and industrial properties. For property owners, investors, developers, and lenders involved in commercial real estate.
- Services to Professional Practices Legal services tailored for professional practices including attorneys, accountants, and other licensed professionals. For licensed professionals and their firms requiring specialized counsel on practice-related legal matters.
Companies that use OLSS
Customer profileSegments3 records
Ideal customer profiles3 records
OLSS technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
OLSS partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- American College of Trust and Estate Counsel (ACTEC)corePhil Corbo represented ACTEC at the 60th Annual Heckerling Institute on Estate Planning in Orlando. At the ACTEC booth, Phil discussed the organization's fellowship nomination and election process with attendees, as well as the professional benefits of ACTEC membership for estate planning practitioners. OLSS attorneys actively participate in ACTEC events representing the firm and the broader estate planning community.
Scale indicators1 record
Recent moves5 records
Expansion highlights4 records
OLSS competitors and assessment
Company assessmentMarket position
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
OLSS social profiles
Digital presenceOLSS financial estimates
Financial estimateRevenue estimate
Valuation estimate
OLSS leadership team
Management profileNumber of profiles
Profiles13 records
OLSS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
OLSS M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about OLSS
What does OLSS do?
OLSS is a full-service mid-sized law firm providing legal representation across five practice areas: Litigation and Dispute Resolution (commercial, business, and class action litigation including trial and appellate practice); Tax, Trusts and Estates (estate planning, trust administration, and wealth transfer); Corporate (M&A, entity formation, and outside general counsel); Real Estate (commercial property transactions and financing); and Services to Professional Practices (counsel for attorneys, accountants, and other licensed professionals). The firm serves business clients, business owners, executives, and high-net-worth individuals through offices in New Jersey, New York, and Pennsylvania.
Is OLSS a public or private company?
OLSS is a private company. It is classified as management employee owned and is currently operating.
When was OLSS founded?
OLSS was founded in 1975. It employs 11 to 50 people.
Where is OLSS based?
OLSS is headquartered in Morristown, United States, in the North America region.
Does OLSS have an API?
No public API is recorded for OLSS.
What industry is OLSS in?
OLSS's product category is Legal Services. Its primary akta.pro industry code is BPAKAHAD, eDiscovery, Litigation Support & Expert Witness Services, with a secondary code of BPAEAPAE, eDiscovery, Litigation Support & Legal Hold. Its NAICS code is 541110 and its SIC code is 8111.