Learn English – More formal way of saying “sloppy”

I am writing a formal document. It is a petition to appeal an administrative law decision. The decision is jam-packed full of sloppy mistakes of every kind imaginable. (The guy who wrote it couldn't even manage to spell the name of my town correctly in the title of the document.) I list all the errors and inaccuracies in my appeal petition, with specific references to pages in the hearing transcript and exhibits. But I want to preface the list with something that means the following:

A number of the problems noted might seem rather insignificant, but I will list them all, to show the review officer how incredibly sloppy the decision is. OR: what a slapdash job the hearing officer did in analyzing the case and writing up the decision.

Only I can't say "incredibly sloppy", I need more formal language. I need a more subtle way of saying sloppy.

I don't mind making adjustments in my sample sentence to accommodate a different part of speech or whatever.

Note, the following question is somewhat related but doesn't. A word for not paying attention to detail, causing sloppiness.

One idea:

A number of the problems noted might seem rather insignificant, but I will list them all, to show the review officer the shocking lack of care taken in analyzing the case and documenting the decision.

Another idea:

The hearing officer's slapdash [or: haphazard] analysis and write-up resulted in erroneous references and errors of fact that are too numerous to list in the space allowed. I will only be able to provide corrections for a portion.