Report the stockbroker to the SEC (securities and exchange commission)
No, you sue the owner, which is the estate.
You can only sue the estate for the actions of the estate/executor. Any right to sue the individual expires when the individual dies.
No, they cannot. The "descendants" cannot sue "descendants", but the "estate" of the wronged man may sue the "estate" of the man who did the wrong.
The landlord could sue the decedent's estate.
You can sue anybody for anything, but it doesn't mean you will win. So, basically, YES, you can sue for a specific performance in an assignment to real estate.
Yes, they can sue the executor. They breached their duty if they did not resolve the taxes before closing the estate.
when you opened the account you probably opened with margin. If you bought more stock than you had cash for and were leveraged against your will and had to sell out or got a margin call you can go to arbitration. You waived your right to sue wen you opened the account, you have to go arbitration which can work out better for you.
No, you cannot sue their spouse. You may be able to sue the estate, particularly if the estate was enriched by the crime. Cases of embezzlement come to mind as a possibility.
You would need a real estate lawyer to sue a realtor.
Generally, you can't sue a dead person. You would have to sue their estate.
Yes, you can sue a real estate agent for misconduct or negligence if they breach their duty of care or act in a way that causes harm or financial loss to their client.
You would need to carefully read the contract between you and your broker. Generally, you would have to prove that your broker was professionally neglient or defrauded or misrepresented. I suspect your broker has a clause which warns you that the nature of financial investing is risky and that investments can go down as well as up. In short your broker does not guarantee profits. If you are convinced your broker was neglient etc. You can file a small claims at your local courthouse-this is $2,500 to $5,000. If the amount exceeds this then you have to file differently and you will almost certainly get involved with lawyers. I would offer the opinion that you would have a very difficult case to prove, and even if you did prove it you would be unlikely to be paid a substantial judgment-a broker would more than likely file bankruptcy protection.