Is this the firm that you dealt with?
https://brokercheck.finra.org/firm/summary/146122#disclosuresSection
I think the crux of the problem here is really where your money ultimately resides. The reason why the prop firm was able to take advantage of the situation is they were able to make your money to reside with them BEFORE arriving at any clearing firms, introducing brokers, brokers, via that agreement that you sign which essentially gives them the permission to conmingle your money with theirs so you are no longer their customer but part-owner or partner of their firm. I think this is where most of the people are confused at. Since you are no longer their customer, they no longer have an obligation to segregate your funds with their company funds (and when they are not even regulated with anybody, they don't even have the obligation to separate your money from the company's funds to begin with), your money basically becomes theirs so at any time, when they want to take off, they will just take off with everything especially if you agree to be in the lowest class of shareholders that gets the money last. That is a major scam!! So sorry to hear about your loss,
@Max E. So it doesn't matter where they in turn deposit their company money, they can deposit their money with the top top broker but your money is already hijacked by them in the first place.
But if you have bypassed those unscrupulous prop firms and made sure your money ultimately resides with a reputable clearing firm like Wedbush even if it's through LightSpeed which is really just a referral agent, then you are fine. As long as you can get affirmation that your money is indeed in custody with Webush, a SIPC, FINRA registered and SEC regulated firm or any other top reputable trading firm then it's fine. So to answer your question,
@yamin2000, yes you can trust LightSpeed as long as you make sure your money is REALLY sitting at the bank accounts owned by Wedbush and NOT anyone else.