Is my story lore-friendly?

[Princess_Cassandra]

I have a few questions I'd like to ask to get a better understanding, related but not directly related.

After the end of the Dragonsong War and Ishgard becoming part of the alliance, is House Fortemps still known to employ sell-swords and adventurers? Have any other of the main houses changed their stance?

Would the Warrior of Light be allowed to live in Ishgard/Coerthas if they asked, or would they be denied for being an outsider still despite their deeds? What about to a far lesser degree, an adventurer who has proven their worth having slain a dragon? Also is it true that there is some social mobility in the sense that should a peasant slay a dragon, they may become knighted and socially advance?