Judgment, Supreme Court, New York County (Bonnie Wittner, J.), rendered July 13, 2000, convicting defendant, after a jury trial, of criminal possession of a controlled substance in the first and third degrees and conspiracy in the second degree, and sentencing him to an aggregate term of 28 years to life, unanimously affirmed.
Defendant was not deprived of his right to effective, conflict-free assistance of counsel. Although defendant and his codefendant-brother Jorge Contreras were represented by attorneys who were mother and son and shared office space and other services, the attorneys had separate practices and the trial of defendant’s brother was already completed. Even though no such inquiry was necessary, the court conducted a sufficient inquiry pursuant to People v Gomberg (38 NY2d 307 [1975]), following which defendant made an informed determination to proceed with the attorney in question. The trial record further shows that any possible conflict did not operate to defendant’s detriment (see People v Henderson, 11 AD3d 366, 367 [2004], lv denied 4 NY3d 744 [2004]; see also Cuyler v Sullivan, 446 US 335, 348-350 [1980]).
The court properly precluded defendant from introducing an affidavit from a nontestifying person as a declaration against penal interest. There were no supporting circumstances attesting to the reliability of the statements (see People v Motter, 235 AD2d 582, 587-588 [1997], lv denied 89 NY2d 1038 [1997]).
Defendant’s suppression argument and his constitutional claims regarding the admission of the expert testimony and the exclusion of the declaration against penal interest are unpreserved and we decline to review them in the interest of justice. Were we to review these claims, we would reject them.
We perceive no basis for reducing the sentence. Concur— Mazzarelli, J.P., Friedman, Marlow, Sullivan and Catterson, JJ.