Florida law..the defendent must specifically retain the right to appeal on limited issues...
Florida Criminal Procedure And Corrections Code Section 924.051 - Criminal Appeals And Collateral Review - Terms and conditions of appeals and collateral review in criminal cases.
Title XLVII CRIMINAL PROCEDURE AND CORRECTIONS
Chapter 924 CRIMINAL APPEALS AND COLLATERAL REVIEW
924.051 Terms and conditions of appeals and collateral review in criminal cases.--
(1) As used in this section:
(a) "Prejudicial error" means an error in the trial court that harmfully affected the judgment or sentence.
(b) "Preserved" means that an issue, legal argument, or objection to evidence was timely raised before, and ruled on by, the trial court, and that the issue, legal argument, or objection to evidence was sufficiently precise that it fairly apprised the trial court of the relief sought and the grounds therefor.
(2) The right to direct appeal and the provisions for collateral review created in this chapter may only be implemented in strict accordance with the terms and conditions of this section.
(3) An appeal may not be taken from a judgment or order of a trial court unless a prejudicial error is alleged and is properly preserved or, if not properly preserved, would constitute fundamental error. A judgment or sentence may be reversed on appeal only when an appellate court determines after a review of the complete record that prejudicial error occurred and was properly preserved in the trial court or, if not properly preserved, would constitute fundamental error.
(4) If a defendant pleads nolo contendere without expressly reserving the right to appeal a legally dispositive issue, or if a defendant pleads guilty without expressly reserving the right to appeal a legally dispositive issue, the defendant may not appeal the judgment or sentence. (5) Collateral relief is not available on grounds that were or could have been raised at trial and, if properly preserved, on direct appeal of the conviction and sentence.