No, you do not have to make a new will. You could make a codicil to appoint a new executor, an amendment to the existing will. Or the court will appoint one when the will is submitted to probate.
Sole executor is a single person. They are responsible for handling the estate. They will report the results to the court.
As an executor, you have a duty to sell the house and distribute the proceeds. If you want to buy the house from the estate, you can make that arrangement.
Yes. You can notify the court that the executor has died and request that you be appointed the successor.
If the beneficiary died after the testator you must review the will to make certain there is no set time period the beneficiary must survive the testator. If there is no such provision then the gift becomes part of the beneficiary's estate.
The sole beneficiary can expect to inherit all the property owned at the time of death of the testator after any debts have been paid.
As long as the will was properly drafted and is allowed by the court the executor and the beneficiary can be the same person.
If you are the sole Executor you do not need signatures from any beneficiaries.
In Connecticut, title to real estate passes to the devisees or heirs upon the death of the owner. However, there may be circumstances where the executor is given power to sell the real estate by the testator. Also there are circumstances when the real estate may be sold by the executor, for example, if there are debts to pay. Speaking generally since you did not provide much detail, if it was NOT sold to pay debts of the estate you had the right to keep it and pay for it yourself if it was mortgaged. Especially if you are the sole heir.
No one needs to go to college to be an executor. The sole requirement is to be at least 18 years old.
The executor has no authority to change a will. It is not their document and it is illegal to do so.
The laws of intestacy will be followed. If there is no next of kin, the estate will go to the state.
Someone with dementia is not capable of making a new will. When the testator eventually dies, you can decline to be appointed executor. The estate will be responsible for the debts. If the debts are greater than the assets the estate will be declared insolvent and the beneficiary will get nothing. The bank will take possession of the real estate. You don't need to be "removed" as a sole beneficiary it creates no obligations on your part.