Last time I was there a few days ago she was crying hysterically in front of myself and my two electricians who were upgrading her electrical panel. 

These reasons typically are that they have limited access by vehicle, or limited/no electric or sewage.

Andresa Lobrace depending on the # of units and what you have available for existing infrastrucure (phone, internet, electrical) you should look at a telephone entry system.

Or, converting electric heat to heat?  

(Water, Sewer, Gas, Electricity, Garbage, etc.) 

(for my mother)Add master bathroom on second floor (would be placed directly above the kitchen and across the hall from another bathroom)All new systems (2 Zone HVAC, Plumbing (copper pipes), and electrical)I intend to use Spray foam insulationThe entire house would use low-mid tier materials with certain splurges(hardwood, kitchen cabinets)This will not be a rental, I'd live here. 

Told him I would help him fix the issue and educated him that mice, unlike roaches and bed bugs, aren't treated with sprays and other chemicals.

You can ask whether or not the units are separately metered (electric, gas, water). 

Upon signing her lease agreement, her then landlord told her not to worry about gas utility and to only pay electric.

Is this a heat pump (electric)?