Sorcerer wizard multiclass question

[maouse33]

Ok, my normal zapper starts out;
Crossblooded sorcerer orc/Draconic 2 levels.
At 1st level I do spell focus: evocation and spell specialization (burning hands, snowball, shocking grasp - whatever kind of zapper they're gonna be).

Magic knack and precocious spellcaster by 2nd level (I play 1st level with a CL boost trait in place of magic knack, or a +1d4 damage adder to hit 5dx +10 total)

anyway. At 3rd, I'm dipping into wizard (scroll master being my favorite).

They get scribe scroll replaced with spell focus.

Question: if I already have that feat, do I HAVE to take it again as a bonus? Can I train it out? Can I train it out of my first level feat slot from being human? Or am I stuck having 2 spell focus feats because the first level one is a pre req for spell specialization?

Spell focus
Spell specialization
Spell focus (Again)
elemental focus

That's the third level load out. I'd love to have the first spell focus feat slot back. But is that PFS legal under retaining rules?

[maouse33]

Ok. I think I answered my question:

Step 1, retain BOTH first level feats (technically spell spec first, then spell focus, since it's no longer a pre req).
Step 2, level to 3rd, get spell focus (evocation) instead of scribe scroll. Use 3rd level slot to learn spell specialization.

Seems legal.