Great question, Austin. And nice work.
1 – Correct, “real estate agent” would be a core keyword. But your variable keywords will vary dramatically depending on #2.
2 – Make sure add proper variations to target buyer-intent keywords.
Because if you want to attract Realtors wanting to become an agent that is completely different than someone looking to hire an agent.
If you want to attract Realtors, this one is great, “How long does it take to become a real estate agent in NM?”
It implies intent in them asking “how long does it take to become one…” and higher conversion by adding a location qualifier.
If you want to attract home buyers/sellers, then you’d have a different path of something like “How much does it cost to hire a real estate agent?”