Best action to take re lawsuit
My 85 yr old dad's home is heated by oil and he has an outdoor oil tank. He went away for a few weeks and left his heat on low to make sure the house would stay warm. (it is winter). He returned to find the house cold and no heat. He called & had someone come to see if the furnace was broken and was told it was fine. It was discovered there was no oil. This did not seem right as he was on a schedule with the oil company and he had enough to last him for 2 months and the heat had been on low while he was away (he always does that with no prob) so he had no big use of the oil. The oil company came and checked the level & said "yes it is empty" and filled it again. Once the heat came on he heard a noise and three of his water pipes burst (they had been frozen). The house became cold again. They then discovered that the oil tank had a leak and all the oil (both the former oil & the new refill) had all leaked under the foundation.
His insurance company is handling the clean-up , digging up the foundation etc . My Dad has to be out of his home for the next 4 months. The home insurance coompany wants to sue the oil company for their expenses saying they are negligent and the oil company records even show they put more oil in the tank than the tank actually holds!
They are offering to include my Dad in their lawsuit based on what he has gone through, his age, etc.
My questions are:
1. should I let the home insurance company include my Dad on their lawsuit or file one of my own? (seems easier if they do it but not sure if it is the right decision).
2. what things can I claim for my Dad in a lawsuit(as part of the insurance claim or on my own) other than
-affects the value of the home, landscaping destruction, stress & inconvenience to my Dad, out of pocket expenses
Thanks