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About me

I started my own practice in an attempt to assist new entrepreneurs to jump cumbersome, complicated and expensive legal and
regulatory hurdles when starting or growing business.  The cornerstone of my practice is providing clients cost-effective guidance
and business service that are necessary to build a proper foundation in a new or existing business.  I am looking to forge long-lasting relationships
with my clients to establish a business “partnership,” able and willing to be at a client’s service 24/7 – always on call to provide
counsel that helps meet expectations and achieve goals. 


To this end, I feel it is essential for an attorney to not only be proficient in
legal doctrine, but also to have that doctrine grounded in the client’s
business and financial realities.  Drawing from my business and accounting graduate education and prior business experience, I advise clients not only from a legal perspective, but from a business and financial standpoint to provide truly effective and comprehensive counsel.  






Languages spoken: English, Portuguese

Practice areas


  1. Contracts: 30%
    6 years, 65 cases
  2. Business: 30%
    6 years, 50 cases
  3. Immigration: 20%
    3 years, 20 cases
  4. Real Estate: 20%
    6 years, 20 cases



Fixed (sometimes), Free consultation (30 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • Orlando Lopez

    I endorse this lawyer.David Ionson was the in-house counsel for one of my clients. David was very good at identifying the important issues and obtaining help for issues, such as complex intellectual property issues, outside of his areas. David has a strong common sense, including financial issues, which is very useful in corporate matters.


    Orlando Lopez Intellectual property Attorney
    Relationship: Worked together on matter

  • Kevin J Mahoney

    I have worked with David Ionson on, at least, four cases. He is a hardworking, enthusiastic, and talented lawyer with a brilliant legal mind. I recommend him without hesitation.


    Kevin Mahoney Criminal defense Attorney
    Relationship: Worked together on matter

Contact info

Ionson Law

400 TradeCenter
Suite 5900
Woburn, MA, 01801


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
OwnerIonson Law2010 - Present
General CounselOncam Global Inc.2009 - 2011
Tax InternRaytheon Co.2008 - 2009
Tax InternDeloitte Tax, LLP2007 - 2008
Legal InternKeyspan2006 - 2007
Legal InternMA Department of Youth Services2006 - 2006
Association namePosition nameDuration
United States Tax CourtAdmitted2009 - Present
Massachusetts Bar AssociationAttorney Member2009 - 2011
Boston Bar AssociationAttorney Member2009 - 2011
American Bar AssociationAttorney Member2009 - 2011
Massachusetts Real Estate Bar AssociationAttorney Member2009 - 2011
Legal cases
Case nameOutcome
L-1A Intra-company TransferApproved
H-1B VisaApproved
Removal of Conditional ResidenceCondition Removed
See all legal cases 
School nameMajorDegreeGraduated
Northeastern University School of LawLawJD - Juris Doctor2009
Northeastern UniversityAccountingMS - Master of Science2008
Northeastern UniversityBusinessMaster of Business Administration2008
Northeastern UniversityCriminal JusticeBS - Bachelor of Science2004
Speaking engagements
Conference nameTitleDate
Money Matters RadioEstate Planning2010