methods of voting

You said you're already sending proxies and ballots by mail, but the real problem here is apathy - if the absentee owners don't bother to return them, I don't know if electronic voting will change things.

It may be time to send a "come to Jesus" type letter, explaining the holdups in official business because there aren't enough people to hold a meeting or elect a board. the board oversees the operation of the HOA and if there aren't enough people to do it, your HOA risks requiring a receiver to run things. That would mean a lot more in assessments because you'd have to pay the receiver, the court costs and attorneys fees to get a judge to appoint one - on top of paying routine expenses and funding reserves! If that doesn't get anyone's attention, you may have no choice but to pursue receivership - tell homeowners once that happens it may take a while to reverse it. All because people were too lazy to fill out a proxy and send it back!

Some HOAs are beginning to use electronic voting, so you may want to research the issue to see what the pros and cons are. Your association attorney may also need to review the documents to see if there's anything right now that permits alternative ways of casting a vote - if not, you'll probably need to change the bylaws to allow electronic voting. Which will require a certain percentage of homeowners to approve it - and you already see how hard that will be because people don't even bother to vote right now.