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Irene Costas

About me

Ms. Costas  focuses her practice on matters concerning commercial, complex litigation and general civil trial matters.

Prior to entering law school, Ms. Costas worked at Washington University's School of Medicine Clinical Outcomes Research Office where she devoted her time to studying the impact of co-morbidity on cancer survival. Ms. Costas presented her work at the Centers for Disease Control Cancer Conference. Ms. Costas has also published numerous articles for various medical publications including the Journal of the American Medical Association and the National Cancer Institute's SEER Survival Monograph on the topics of cancer survival and prognostics.

Prior to joining Kayira Law, LLC, Ms. Costas maintained as her primary area of civil practice in domestic litigation, including cases involving divorce, paternity, custody modification, guardianship, post judgment enforcement, and adoption.


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Practice areas


  1. Probate: 25%
    7 years
  2. Litigation: 25%
    7 years
  3. Family: 25%
    7 years
  4. Personal Injury: 25%
    5 years



Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

8 total 

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  • Eric Francis Kayira

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    Eric Kayira Business Attorney
    Relationship: Co-worker

  • Amanda E. Hogenmiller

    I endorse this lawyer.


    Amanda Hogenmiller Family Attorney
    Relationship: Worked for lawyer

Contact info

Kayira Law, LLC

200 S. Hanley Road
Suite 208
Clayton, MO, 63105


MOGood Standing, Active200801/08/2013
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Best Law Firms in Missouri - Kayira LawU.S News and World Report2015
10 Best Family Law Attorneys - Client SatisifactionAmerican Institute of Family Law Attorneys2015
Health Services Research Administration Traineeship AwardSt. Louis University2000
Endowed ScholarshipFontbonne UniversityN/A
Alumni ScholarshipFontbonne UniversityN/A
ScholarshipSisters of Saint JosephN/A
Work experience
TitleCompany nameDuration
AttorneyKayira Law, LLC2012 - Present
AssociateStange Law Firm, LLC2009 - 2011
Assistant Property MangerDoric Investments2003 - 2009
Statistical Data Analyst- Cancer ResearchWashington University School of Medicine2001 - 2004
Association namePosition nameDuration
Missouri State Bar AssociationMember2008 - Present
American Bar AssociationMember2008 - Present
Publication nameTitleDate
NCISEER Survival Monograph: Cancer Survival Among Adults: U.S. SEER Program, 1988-2001, Patient and Tumor Characteristics.2007
NCISEER Survival Monograph: Cancer Survival Among Adults: U.S. SEER Program, 1988-2001, Patient and Tumor Characteristics2007
JAMAImportance of Comorbidity in a Hospital Based Registry2004
School nameMajorDegreeGraduated
Saint Louis University School of LawLawJD - Juris Doctor2008
Saint Louis UniversityPublic HealthMPH2001
Fontbonne UniversityBiologyBS - Bachelor of Science1998
Speaking engagements
Conference nameTitleDate
Centers for Disease Control Cancer ConferenceThe Prognostic Importance of Comorbidity to Cancer Statistics2003