How Do I become a Noble Family with an Estate?

[Tankthinker]

So I was landless, took some land, then swore fealty to the byzantine emperor but Im not a governor or anything, not a noble family, even though I have land inside the empire my land isnt a part of a theme and is just run like a normal lands in ck3... how do I become one of these noble families and start participating in the intrigue and using influence as a resource? I even have a strong hook on the emperor yet there is no option anywhere and no explanation.

[Emperor Jeff]

Adopt administrative governance through decisions, (having an administrative liege makes this very easy).