His financial affairs are none of your concern under any circumstances. You still pay your rent... but you can demand a discrount for going without electricity for a couple days. Until you hear otherwise or until your lease expires or until you give proper legal notice or he does to end tenency you continue to live there and continue to pay your rent as usual.

Continue to pay the rent. He may keep the property or not and that is not your call. Be really careful to keep the details and receipts to everything so you have proof to new owner that you have paid these bills.

Yes, you pay rent, and you pay it to him. Possible foreclosure is not relevant. You pay rent to the owner opf the property, period.