Thomas J O'Neill Attorney

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Map & DirectionsDirections24 E Market StWest Chester, PA 19382 Write a ReviewWrite Review

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AKA: O'Neill Thomas J
Categories: Employment Discrimination Attorneys, Accident & Property Damage Attorneys, Attorneys, Employee Benefits & Worker Compensation Attorneys, Labor & Employment Law Attorneys

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Phone: (610) 430-8000

Address: 24 E Market St, West Chester, PA 19382

Thomas J O'Neill Attorney

Family Law

Divorce
Child Support
Child Custody and Visitation
The Family Law team has extensive knowledge pertaining to divorce, child custody, adoption, financial support, distribution of assets, as well as cases involving complex interstate support enforcement and custody issues.
Adoption
Premarital Agreement
We handle all aspects of estate and tax planning, including providing counsel on the development and implementation of estate planning techniques designed to achieve our clients’ personal objectives and transfer wealth in the most tax-efficient manner. Our attorneys assist clients with non-tax aspects of estate and personal planning, such as asset protection, centralized management of assets, transitioning ownership of a family business, premarital agreements, and effective use of trusts for younger beneficiaries such as children and grandchildren, and beneficiaries who are compromised due to health, finances, legal trouble or addiction issues. As part of their estate plans, our clients may decide to create and fund trusts for wealth preservation such as Dynasty Trusts, Trusts for Grandchildren, GRATS, QPRTS, Charitable Remainder or Lead Trusts and Charitable Foundations. Planning includes end of life medical decision making and the handling of financial affairs in the event of incapacity or disability. Lamb McErlane attorneys are here to help the grantor and trustees to properly administer these entities to make sure the trustees are making proper distributions and upholding their fiduciary duties.
Guardianship
Our attorneys handle cases for guardians of both the estate and the person of incapacitated individuals, and we represent both individual and corporate guardians for minor children, elderly individuals and disabled individuals. We handle all aspects of guardianships, from securing the guardianship appointment through advising the guardian in his or her fiduciary role.
Spousal Support
Legal Separation
A parenting plan, parenting arrangement, parenting agreement or access schedule is a voluntary agreement created by a child’s parents that lays out specific terms of child-rearing that the parents will abide by. Such an agreement is incorporated into the divorce decree or legal separation. The parenting plan allocates parenting tasks and divides duties such as financial responsibility, creating a stable, loving environment for the child, caring for the child’s physical and emotional needs as well as other things. A parenting plan may have specific obligations and conditions as agreed upon by the parents. However, most plans include decisions regarding the following...
Child Abuse
If the parents cannot agree on a parenting plan, the court may decide to create a plan for them. When creating the parenting plan the court may require each parent to submit his or her own plan for consideration. If the parents (or one parent) need help with this task, the court may appoint a guardian ad litem to review the case and make recommendations to the court. The parents must agree to the parenting plan to have it finalized in the divorce decree. If the court discovers evidence of child abuse, they will not create a parenting plan.

Criminal Law

Criminal Defense
The criminal defense team at Lamb McErlane is well-prepared to deliver a wide range of services, from initial investigations through to trials and appeals. Depending on the needs of a given client, our firm criminal defense lawyers have achieved acquittals at hard-fought trials, declinations of prosecution following complex and intensive investigations or negotiations, comprehensive and favorable global resolutions, and significant appellate victories.
DUI/DWI
ARD is most often available for first time, non-violent offenses, particularly DUIs (driving under the influence). In the case of DUI, completion of the program requires a CRN (court reporting network) evaluation and mandatory highway safety classes. For higher blood alcohol levels (.16 of above), those who refused blood/breath/urine testing, or those with prior DUIs, an additional, more comprehensive drug and alcohol evaluation will be required in addition to counseling. Certain counties also include mandatory community service as a condition of the program.
Wrongful Death
Traffic Violations
Sex Crimes
Dismissal of multi-million dollar demand for alleged wrongful conviction of man jailed for over 20 years for a rape/murder that later DNA testing established he did not commit;
Fraud
Robbery
Burglary
Represented a college student whose tale began with an arrest for public indecency after he was found nude outside in a residential development. A search of his car revealed what the police believed were chemicals designed for some illicit purpose (most likely the manufacture of drugs). The police impounded the car, and later charged the individual with Burglary and related offenses for physically breaking into the State Police impound lot located adjacent to their barracks by cutting the surrounding fence, retrieving the chemicals from the trunk, and disposing of them. A subsequent mental health evaluation identified that the young man was suffering from a mental illness at the time of these events. Despite the argument of the Commonwealth seeking a significant jail sentence, the young man received probation.
White Collar Crimes
Theft
Misdemeanors
Represented two brothers charged with the felony offense of shooting a weapon into the trailer of another individual in East Brandywine Township, as well as other misdemeanor charges associated with the same act. During a four-day jury trial, the trial judge granted our motion to dismiss the felony charge and one of the misdemeanor charges for lack of evidence on both clients. Only the remaining misdemeanor charges went to the jury. Despite the length of the trial, the jury returned Not Guilty verdicts for both clients on all charges in approximately 45 minutes. We since have successfully had all weapons rightfully returned to our clients, and more importantly had these offenses expunged from their records.
Drug Crimes
Assault
Murder
These unfortunate limitations and constraints notwithstanding, we do appreciate the District Attorney’s professional courtesy of speaking with the family and candidly acknowledging all these limitations and constraints. We also point out that another highly experienced homicide prosecutor while employed at the Philadelphia DA’s Office conducted his own independent review of this case, thoroughly investigated all the issues surrounding Ellen’s death, and reached the opposite conclusion, that Ellen was murdered. We now look forward to an upcoming trial where a full and forthright examination of the core issues surrounding Ellen’s murder may be publicly conducted before an independent Judge and jury of our peers.”
Homicide
The 2011 stabbing of a Philadelphia woman whose death was initially ruled a homicide before the medical examiner switched it to suicide after police objected.
Arson
Manslaughter
Internet Crimes

Business and Corporate Law

Corporate Law
Mergers and Acquisitions
At Lamb McErlane, Chad has extensive experience in mergers and acquisitions including both buy-side and sell-side representation, private equity and strategic transactions. Chad serves as outside general counsel to many companies, providing advice and support through all stages of growth, and also advises clients in connection with complex real estate and business litigation matters.
Business Formation
Whether the client is a closely-held business or a large national corporation, the Business Practice Group at Lamb McErlane is fully equipped to advise on a wide range of business issues including business formation, mergers and acquisitions, debt or equity capitalization, corporate agreements, owner relationships, business restructuring, labor and employment matters including creative compensation structures, taxation, real estate transactions, leases, land use, and litigation and dispute resolution for all of the foregoing.
Business Disputes
Representation of athletes, coaches, and interested parties in contract disputes, NCAA inquiries and personal disputes outside of their official roles
Intellectual Property

Employment Law

Workers Compensation
An employee injured in Pennsylvania is often unable to return to his or her regular job with the employer because of the severity of the work injury. If you have been injured at work and are receiving workers compensation disability benefits, it is likely that at some point the employer will attempt to suspend or modify those benefits.
Wrongful Termination
Employment Discrimination
Employment Contract
Employment Litigation
The Lamb McErlane employment law practice encompasses a full range of services including human resource counseling, employment litigation and representation in labor relations matters.
Severance Agreement
Sexual Harassment

Property Law

Real Estate Litigation
Employment and Real Estate Law practice areas are new additions to the 2025 “Best Law Firms” ranking. Trusts and Estates has moved up to a National Tier 3 and Tier 1 Metropolitan ranking and Health Care Law to a Tier 2.
Premises Liability
Construction Litigation
The Firm’s appellate lawyers have briefed and argued many high profile appeals for major national and multinational corporations faced with complex issues from the correct implementation of class action procedures, to admission of expert testimony, to the proper application of substantive law in cases raising issues of employment law, negligence, the law of contracts, professional liability, land use, taxation, and construction disputes.
Real Estate Transactions
We represent clients in a broad range of sophisticated and complex commercial and residential real estate transactions and offer a full range of services for buyers, sellers, developers, landlords, tenants and capital markets clients including...
Eminent Domain
Lamb McErlane is widely known for its dynamic, diverse and efficient litigation practice. Whether the issue is a commercial dispute involving Fortune 100 companies, a complex real estate or estate matter, or an eminent domain proceeding, when a client chooses Lamb McErlane to represent it in litigation, the matter is staffed to achieve the most efficient result in the most responsive, timely and productive manner.
Land Use and Zoning

Health Law

Personal Injury
Lamb McErlane's Personal Injury Group has a long and successful track record representing clients on a contingent fee basis in diverse matters including wrongful death and survival actions, medical and dental malpractice, automobile accidents, product liability, liquor vendor liability and premises liability in both federal and state courts.
Medical Malpractice
The Post-trial and Appellate Practice Group is comprised of former law clerks from appellate courts in the Commonwealth of Pennsylvania, including the Third Circuit Court of Appeals and the Pennsylvania Supreme and Superior Courts, and a former Justice of the Pennsylvania Supreme Court. The Group has prosecuted and defended appeals from verdicts in courts from Philadelphia to Allegheny Counties and throughout the Commonwealth. The Group has appealed multimillion dollar medical malpractice, products liability, warranty, consumer and other commercial verdicts, and challenged trial court decisions in complex commercial, criminal, estates and regulatory matters. The Group also regularly participates in appeals filed on behalf of local municipalities and governmental agencies.
Auto Accidents
Dog Bites

Trusts and Estates

Estate Planning
At some point events require the implementation and execution of estate plans. We assist our clients in trust & estate administration matters. We work with families and advisors to ensure families and other beneficiaries are treated with dignity and respect, are well informed, the assets distributed as planned, and the estate is managed effectively, timely and efficiently.
Wills
Will contests, including matters claiming lack of testamentary capacity, undue influence, fraud, duress and exercising spousal rights to elect against a will, as well as various other forms of probate litigation.
Trusts
Lamb McErlane attorneys have extensive experience working with people to thoughtfully and effectively create and finalize estate plans, administer trusts and estates.
Power of Attorney
A Durable Healthcare Power of Attorney, sometimes called an Advanced Medical Directive, allows you to designate a healthcare agent, usually a family member, to make medical decisions for you if for any reason you are unable to make them yourself. The Living Will portion allows you to leave a written set of instructions to your physician as to whether or not you want to receive life-sustaining procedures if you have been diagnosed with a terminal condition or are in a persistent vegetative state. It gives guidelines for your family members to follow if you become terminally ill.
Probate

Finance Law

Foreclosure
Our team handles everything in one stop: from the initial title search to judgment to taking title to resale. This means no handoffs between professionals and no down time. This also means we typically finish foreclosures faster—reducing your carrying costs, getting you to outright ownership or resale quicker. Contact Lamb McErlane attorneys Anthony D. Giannascoli or William J. Thomas.
Tax Law
Jeong Hyeon Park is an associate at Lamb McErlane and concentrates her practice in business law, including general business, commercial, banking, real estate and tax law and mergers and acquisitions.

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