Colgan Law Firm LLC Colgan Law Firm - Kansas City Attorney specialized in Family Law, DUI, DWI, Personal Injury, Workmans Comp, Traffic and Criminal Defense and Probate/Estate Palnning. Serving Wyandotte County, Leavenworth County, Johnson County, Kansas. Family Law - Divor Colgan Law Firm - FREE Consultation - 913-721-9999. Serving Wyandotte County, Leavenworth County, Johnson County, Kansas. Kansas City Attorney specialized in Family Law, DUI, DWI, Personal Injury, Workmans Comp, Traffic and Criminal Defense and Probate/Estate Palnning. Family Law - Divorce, Custody, Maintenance/ Alimony, Parenting Time, Move Away Issues, Property Division, Debt Allocation, Guardianship, Conservatorship, Child in Need of Care, Adoption.