Federal Criminal Defense Attorneys for Cases Involving FBI, IRS, HHS-OIG, DEA, and Homeland Security
Lowther | Walker provides experienced, high-stakes federal criminal defense to clients across Philadelphia and the Eastern District of Pennsylvania. Our attorneys have represented clients in white-collar crime, healthcare fraud, financial offenses, cybercrime, public corruption, and federal conspiracy cases. We understand the unique pressures Philadelphia residents face when targeted by federal authorities—and we act quickly to protect your rights, reputation, and future.
Your first call after a criminal charge can define your future. Request a free, no-obligation confidential consultation with Lowther | Walker today via (404) 496-4052.
No-obligation. Fully confidential.
Call Us Today: (404) 496-4052
Federal investigations in Philadelphia involve powerful agencies, strict procedures, and aggressive prosecution strategies. Targets face teams from the FBI Philadelphia Field Office, DEA Philadelphia Division, IRS-CI, ATF, and HSI, each using surveillance tools, informants, digital-forensics labs, and financial-tracking systems. Once these agencies focus on a person or business, the process escalates quickly. A seasoned Philadelphia federal criminal defense attorney is essential for balance.
Cases in the Eastern District of Pennsylvania often include:
These cases rely on extensive investigative files: search-warrant materials, recorded calls, controlled buys, business-record subpoenas, and digital evidence pulled from phones, servers, and cloud accounts. Entering this system without a federal practitioner puts you at a serious disadvantage.
Federal rules differ sharply from Pennsylvania state rules. Important decisions happen long before indictment, during agent contact, target-letter response, or grand-jury activity. One careless statement to a federal agent or one production of records without review can change the entire outcome. You need counsel who handles these situations daily, not occasionally.
A local federal criminal defense attorney will have:
Knowledge of Philadelphia federal prosecutors and negotiation patterns of Assistant U.S. Attorneys
Experience with judges in the Eastern District of Pennsylvania, including sentencing tendencies
Command of U.S. Sentencing Guidelines, offense-level calculations, downward-departure strategy, and mitigation tactics
Familiarity with investigative methods used by Philadelphia-based federal task forces
Ability to challenge search warrants, wiretaps, forensic downloads, and surveillance evidence
Immediate guidance on target letters, subpoenas, agent visits, and grand-jury procedures
We defend clients accused of fraud, embezzlement, bribery, public corruption, securities violations, and corporate misconduct. Many Philadelphia cases involve business disputes or regulatory issues, and not criminal intent.
We represent physicians, practice groups, and healthcare businesses across the region. Our work includes kickback allegations, prescribing cases, and Medicare/Medicaid investigations., including Medicaid Fraud, Billing Fraud, and Anti-Kickback defense. We work with doctors, dentists, and medical business owners to safeguard their rights and reputations.
The DEA and Homeland Security pursue interstate and distribution conspiracies tied to the region’s ports, rail lines, and highways. We challenge quantity calculations, informant reliability, and the government’s role theories.
Defending clients in gun trafficking cases, assault with deadly weapon cases, and unlawful possession cases, Lowther | Walker helps clients fight back against federal prosecutors. Our experience in Philadelphia gun cases makes Lowther | Walker your best choice when the ATF and other federal authorities begin investigations.
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From complex healthcare fraud to multi-defendant conspiracies, we excel in cases involving massive discovery, technical evidence, and expert analysis. Our team has successfully defended clients in historic federal criminal cases throughout the U.S., including helping our client win largest healthcare fraud case the DOJ has ever prosecuted.
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Federal cases move fast. We respond immediately to agent contact, subpoenas, target letters, and search warrants. Early intervention often prevents damaging mistakes.
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We only work on federal cases, so our comprehensive knowledge of federal law is second to no other Philadelphia attorney. When you require a federal lawyer for your criminal case, you can turn to Lowther | Walker from minute one. It’s a level of proactive legal guidance that can help preserve your freedom and preempt any strategy the prosecution may deploy.
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Every judge, prosecutor, and courtroom in the Eastern District has its own expectations. Our regular presence in Philadelphia’s federal courts leads to stronger, more strategic outcomes for our clients.
If you’re under investigation or facing federal charges in Philadelphia, contact Lowther | Walker’s offices today via (404) 496-4052 to confirm your free consultation. Our team accepts calls 24/7 to provide immediate legal advice.
No-obligation. Fully confidential.
Call Us Today: (404) 496-4052
A target letter means prosecutors believe you committed a federal crime and may soon seek an indictment. In Pennsylvania, target letters often appear in white-collar, healthcare, and public corruption investigations. Do not contact investigators directly. Hire a federal criminal defense attorney immediately to communicate with the U.S. Attorney’s Office on your behalf.
Many take months to several years. The FBI, IRS, and other agencies often gather documents, data, and witness statements long before you learn you’re under investigation. Indictments usually come only after prosecutors believe they have built a strong case.
You’ll have an initial appearance in federal court, followed by a detention hearing to determine whether you stay home or remain in custody. A Pennsylvania magistrate judge reviews your background, community ties, and the allegations before setting bail or release terms.
Only with your lawyer’s guidance. Cooperation can reduce sentencing exposure or avoid charges, but it can also backfire if not handled strategically. Your attorney must evaluate whether cooperation benefits your specific situation and negotiate protections in writing.
Federal investigations in Pennsylvania often begin with FBI field offices in Philadelphia or Pittsburgh, IRS Criminal Investigation units in Philadelphia, HHS-OIG healthcare fraud teams, DEA narcotics squads, or Homeland Security Investigations teams operating through the Philadelphia field office. Each agency gathers documents, interviews witnesses, and builds evidence files long before notifying a target.
Grand juries in the Eastern, Middle, and Western Districts of Pennsylvania hear evidence presented by Assistant United States Attorneys. These panels issue subpoenas, review digital and financial data, and evaluate allegations from entities like the FBI, IRS-CI, HHS-OIG, and USPIS before deciding on an indictment.
Yes, federal prosecutors and agents from agencies such as FBI or IRS-CI may contact employers, compliance departments, or HR offices when seeking employment records, payroll information, or access credentials. Legal counsel can intervene to limit disclosures and protect rights.
Agents from DEA, FBI, or Homeland Security may seize computers, phones, business records, or prescription data during a search. A lawyer can challenge the warrant scope, demand an inventory, and start the process of reviewing and suppressing improperly seized evidence.
Yes. Witness status can shift quickly, especially when agencies like FBI, IRS-CI, or HHS-OIG gather conflicting statements. Counsel prevents harmful disclosures and ensures communications with the United States Attorney’s Office remain controlled and protected.
Frequently. IRS-CI criminal tax inquiries may run alongside IRS civil audits. HHS-OIG criminal healthcare fraud probes often parallel CMS audits or OIG civil monetary penalty actions. SEC investigations can coincide with DOJ securities fraud inquiries. A lawyer coordinates responses across all fronts.
