No, Wittman. Sorry, you don't know how this stuff works. Otherwise, you would be doing it. And if you don't know something as basic as troop donation order rules, then you don't know the basics.
Tip- reverse order of donation, last-in, first-out. Every time. Yes, I keep providing replays to those who deny this basic rule. Try it.
Squad recruiting is tough, even tougher when you don't know how to do it.
No, my three level 10s, level 9 and level 8 are busy elsewhere, leading and participating in established squads, I won't be joining.
And... the number of officers in your squad has zero impact/meaning.