About the Firm

Barnwell Law Firm, LLC, (“BLF”) is a transactional and litigation firm serving individuals, families, and businesses in the county, state, and federal courts of Pennsylvania, New Jersey, Maryland, and the District of Columbia. BLF focuses on legal issues related to estate planning and probate administration, real estate law, family law, and business law. BLF’s cross-disciplinary and cross-jurisdictional perspective provides clients with a thorough legal analysis which in turn saves clients time and money. BLF is dedicated to the highest level of customer service. Clients benefit from 24-hour access to their unique secure client portal, access to their attorney’s calendar for scheduling, online direct deposit and credit card payment plans, and virtual and in-person meetings at a convenient location of the client’s choosing.

Learn about the founder


Estate Planning/Probate Administration

Succession Planning
  • Agreements for the Sale, Transition, or Close-out of the Business
  • Buy/Sell Agreements
  • Insurance Protection
  • Entity Re-formation
  • Stay Bonus
  • Deferred Compensation Agreement
Asset Protection
  • Revocable/Irrevocable Living Trusts
  • Tax Planning
  • Family Limited Partnerships
  • QTIPs
  • SRTs
  • SITs
  • SNTs
Estate Planning
  • Wills
  • Financial Power of Attorneys
  • Pet Trusts
  • Special Needs Planning
  • Gun Trusts
  • Long Term Care Planning
  • Charitable Giving Trusts
  • Medicaid Planning
  • Family Care Agreements
  • Guardianships
Estate Administration
  • Probate Filings
  • Inheritance Tax Filing
  • Will Contests
  • Distribution Verification
  • Replacement of Representatives/Trustees
  • Audits
  • Business Valuations

Real Estate

  • Landlord/Tenant relationships
  • Residential Sales, Purchases, and Leases
  • Commercial Sales, Purchases, and Leases
  • Deed corrections and recordings
  • Zoning, Land Use and Tax Negotiations
  • Short Sales
  • Mortgage Negotiations
  • Foreclosures

Family Law

  • Pre-marital agreements
  • Co-habitation agreements
  • Post-marital agreements
  • Property settlement agreements
  • Custody agreements
  • Separation agreements
  • Child and Spousal Support
  • Divorce/Dissolution
  • Alimony
  • Adoption
  • Name changes
  • Business valuation
  • Grandparents’ rights
  • Stepparents’ rights
  • Mediation
  • Guardianships
  • Reproductive/surrogacy contracts
  • Self-Representation Coaching

Business Law

  • Employee/independent contractor contracts
  • Policy manuals
  • Employee training programs
  • Employee compensation and benefits
  • Harassment/discrimination claims
  • Internal investigations
  • Corporate governance
  • Board of Director Advisement
  • Stock Option and Purchase Plans
  • Compliance and Ethics
  • Business Entity formation
  • Contract Negotiation
  • Risk Management
  • Buy/Sell Agreements
  • Distribution/Sales Agreements
  • Franchise Agreements
  • Collections
  • Confidentiality, Non-compete, NDA agreements
  • License and permit applications
  • Co-marketing agreements
  • Joint venture and strategic alliances
  • Professional service agreements
  • Vendor Agreements
  • Operating Agreements/ By-laws

About the Founder

Sarah R. Barnwell, Esq., founded BLF to provide clients with exceptional legal care in all aspects of their personal and business affairs. She has over ten years experience with legal matters and operation of a successful legal practice.

Bar Admissions

District of Columbia
New Jersey


J.D., Concentration in Conflict of Law, Case Western Reserve University
M.B.A., Health Systems Management, Case Western Reserve University
B.S. Economics, University of Delaware
B.A. English Technical Writing, University of Delaware
Minor, French

What impresses me most working with Ms. Barnwell, is her attention to detail, flexibility, and confidence.

Joanna P.Serial Entrepreneur

Barnwell Law Firm was the perfect choice for me to handle the complex custody issues that ensued between my ex and I when my ex moved out-of-state. I saved time and money because BLF was so well-prepared to litigate in both Maryland and New Jersey.

Daniel C.Father

BLF provided such efficient and comprehensive service to me through virtual communications up to the day of closing on my first home purchase. When we did meet in person I felt I had known her forever.

Kim T.Homeowner