Please some light about the LLC structure .

[John T.]

I hope everybody is having a great day . I need some light into a question I have. I am considering to create LLC's for my properties , perhaps a series LLC. I read that no matter how good is the structure you set for your business, if an attorney can prove a relationship between you and the entity , your protection is off. So now my question is , how people move their profits ( from LLC's bank accounts) to their personal accounts ? What happen if I need some money that is in my LLC bank account and comes frOm a rental , and I need that money for a personal matter, or to buy something? I really do not understand this . Would not be that a clear link between me and that entity?

  I know maybe this question looks dump(probably it is ), but I really would like to someone who uses this structures to explain how he can use his profits for any personal use, if given the case. 
I was about to get the series LLC, because apparently I can use one entity for my personal cash and another for my stocks account . But how I do deposit money that comes from my paystubs into this entities, if I want to keep putting more money into it? Would not that be a clear link to my personal account ??

Seriously , very lost into this .

I hope some of you guys can help me to understand this . 

Thank you so much !!!