The "Freelance revolution" will have you believe people are desperate for work and their own schedule, and you good find great, competent people at bargain basement prices. You can't.
$12 an hour doesn't work. Cheap and "good" never did. For a small window of time post 2008, the thought was that people would work hard for just a few bucks, because the roof was collapsing around them. That hand has been overplayed.
If you want to grow your firm, but keep expenses low, you're going to have a problem. You can do one or the other, but you can't do both (save your "scaling" meditation for the moment.)
You're not going to find "good help" at $12 an hour, because "good help" knows that they're worth more than $12 an hour. That's why they cost $30 an hour. If you want to grow your firm, you need to invest in your firm and pay top dollar. The results should allow you to then hire more people for $30 an hour (non-legal help). But if you continue paying the lowest you can, you'll continue finding people that want to do the minimum that they can.
Your fear may be that you will have to cut into your own salary or that you won't be able to keep the lights on. That's good. Things shouldn't be comfortable. It's called "risk" for a reason.