Correcting HOA organizational defects

ChrisW - Not to say that an owner won't raise an objection. But no, don't worry about an owner pointing out the past organizational structure invalidating what was done. You've turned it around and that is what matters. If any of the actions taken during hte time the board structure was noncompliant you can seek remedy to reverse those. Dues, citations, fines for CC&R violations are part of the fiduciary responsibility and must be carried out, dual post or not. There may be a reason why there were dual posts, i.e. owner apathy, board/community tension, etc. You're on the right track and look to the future.

Don't worry about the past. You can only do what is present. My only concern was the "appointment" of the position on Vice-president and Secretary. Typically, what happens at an election, the board is elected by the GENERAL members. It is then the BOARD's responsibility to elect the office positions amongst itself. However, it can be done (like in ours) that people elect BOTH board members and officers separately. I like the latter better. Typically, because there is a limitation on the number of board members. Having the option of board members PLUS office positions gives more participation of the people who want to be involved.
I think you did the best you can do in the situation your in. I was in a similar situation. We started out with 7 board members, vice-president, and secretary. By half-way through the year, I had 1 Vice-president and 1 board member! Even I moved out of the HOA, and I was President!!! So sometimes you have to do what you must to get the job done. The secretary job mostly took notes and may have been responsible for filing certain types of paperwork. However, if you have a bookkeeper or Management company, they can handle those details for you. Just make sure it's in their contract to do so.