[Por_sha911]

Whatever you decide, have it written up legally by you and your parents. Otherwise, the good for nothing siblings will whine about you stealing from your parents. If it were just you, I'd say take nothing. Since the other heirs are not willing to lift a finger then lift a finger for them (so to speak) since you would be paying far more for an outsider to handle the affairs for your parents (and ultimately the future estate heirs). Get the cost of everything you are doing if it were paid to an outsider and agree to 2/3rds of that cost (doing your 1/3 for free and getting paid for your brother and sister's portion).