A few observations:

It appears from your supplied sample of data that each record has nine comma delimited fields. Although some are blank, and some of them do themselves contain commas.

Where there are commas within a field, they are always followed by a space.

There are no spaces in either side of a real comma delimiter.

From your sample, only the first field appears to exhibit the unbalanced quotes problem.

If you can confirm these observations as facts, it would allow a more generic solution to be provided?

Is it your intention to only fix up the missing quotes where they are unbalanced, or do you also want to place quotes around other fields that contain spaces and thereby make your data readable using standard csv handlers?