People v. Blumenthal. 12PDJ029. October 23, 2012. Attorney Regulation. The Presiding Disciplinary Judge approved a conditional admission of misconduct submitted by the parties and suspended Thomas Blumenthal (Attorney Registration Number 15549) for one year and one day, all stayed upon successful completion of a two-year period of probation, with conditions, effective October 23, 2012. Blumenthal failed to diligently represent one of his clients in three separate matters and to adequately communicate with the same client as to the status of his cases. In addition, Blumenthal made misrepresentations to his client. His misconduct constitutes grounds for the imposition of discipline pursuant to C.R.C.P. 251.5 and violated Colo. RPC 1.1, 1.3, 1.4(a)(3), 1.16(d), 3.4(c), and 8.4(c).