I run a mainly remote team with over 30 people that also has a small office in LA. I am blown away with the level of competition for remote roles we hire for vs a role in our LA office. On average job boards will drive 5x more candidates for the remote role and the overall level of candidates is way higher. My last remote dev job post had 300+ candidates and a customer success role has 700+ and this all from one post on Stackoverflow or WeWorkRemotely. That said we might be outlier for we pay really well and have a remote first culture. The overall lesson I got though is their a lot more qualified people are looking to work remotely than their is awesome remote jobs.
Personal referrals that this person was amazing. One huge challenge of remote team members is training is a lot harder. You end up hiring very experienced people due to this and not junior talent. Helpscout another remote team has a bunch of articles on how they have this issue also