Maryland Attorneys

Costello Law Group Provides Expert Legal Services
Securities Law, Estate Planning, Nursing Home Neglect, Personal Injury & Professional Malpractice

Estate Planning Lawyers

Costello Law Group can provide estate planning support and assistance with wills, trusts, probate and guardianship services.

Nursing Home Abuse

Costello Law Group helps with nursing home abuse cases. If you suspect your loved one is the victim of nursing home negligence or abuse, give us a call for a free consultation.

Securities Litigation

Costello Law Group represents executives, shareholders, private investors, institutional investors, creditors and others in securities litigation and investor fraud.

Personal Injury

If you’ve been injured due to the negligence of another party in an automobile accident, slip and fall accident or any other incident, contact the Maryland personal injury lawyers at Costello Law Group for a free consultation.

Professional Malpractice

If you have been impacted by the negligence of a professional services provider, such as a financial advisor or attorney, contact Costello Law Group for a free initial consultation.

We provide trusted legal representation to our clients.

Costello Law Group is an experienced and well-respected law firm dedicated to achieving successful outcomes for its clients. We are known for our expertise in the areas of Estate Planning, Investment Fraud Litigation, Nursing Home Neglect, Personal Injury and Professional Malpractice. Our offices are in Towson and we serve clients throughout the state of Maryland. 

  • Wills
  • Trusts
  • Probate
  • Guardianship
  • Powers of Attorney
  • FINRA Matters
  • SEC Matters
  • Securities Arbitration
  • Investor Fraud
  • Stockbroker Misconduct
  • Falls due to Negligence and Lack of Supervision
  • Pressure Injuries/Ulcers
  • Undiagnosed Infections
  • Medication Errors
  • Automobile Accidents
  • Slip and Fall Injuries
  • Pedestrian  Accidents
  • Truck Accidents
  • Financial Advisor Malpractice
  • Legal Malpractice
  • Accounting & Tax Return  Preparation Malpractice
  • Insurance Malpractice


About Costello Law Group

Costello Law Group was founded by Thomas C. Costello to provide high-quality legal representation to the residents of Towson, Maryland, and across the United States. The firm’s knowledgeable attorneys have more than 40 years of combined experience and are committed to providing you with attentive service as well as tailored advice and advocacy that accomplish your goals.

Founding attorney, Thomas C. Costello has both a legal master’s degree (LLM) in taxation and a certification in estate planning. His securities law background includes defending investment firms and financial advisors, which allows him to see both sides of a matter when providing effective representation for investors.

To learn more about the background and experience of Costello Law Group’s attorneys, please review their comprehensive profiles.