Thanks for the update. Clearly, it will be tough to get your security deposit back with a landlord
as explained. Sadly, he can write a letter but cant call saying that the heat will be being turned off.
Also, you can check with Springfield County accessor's office to check if the ownership has passed
from the Owners name to a Bank, that would indicate that it has been auctioned off. Also check if the Taxes have been paid? If Taxes are not paid, then find out if it has been for 6 months or 12 months
The challenge comes up when a property is acquired at auction by a New Owner for their Principal Residence. Also prudent to call the Springfield Rent board to figure out your rights.
Here are some good links to start:
Good luck and keep us posted.