Is there any way I can help a loved one that is elderly, and I'll, to have her landlord fix existing problems with her apartment

You need to contact the Housing Authority or the Cattaraugus Action Services.

Also, National Grid has a program where, if you meet eligibility requirements, they will send people to your apartment or house, regardless of renting or owning, to fix your windows, prevent drafts etc, replace lightbulbs, etc; and even give you a brand new energy efficient refrigerator

Cattaraus County Department of Ageing .