On the free plan you can invite at least three FLs per job post. They may have bumped it to five, now that I think about it. (I haven't hired anybody in a long time, I'm a FL.) A lot of FLs raised a ruckus when they instituted the three-invite limit, and I think they may have raised it a bit.
Annie L wrote:
I wasn't aware there was a limited amount of invites, and have someone I really want to invite to work on my project. Is there a way to do this without upgrading?
If you have someone in mind, simply go to their profile and click "hire me".