Electric heaters are dangerous and can start a fire if left unattended.

@Alecia Loveless is correct--tenants need access 24/7 to their electric service panel, water and heat, assuming those are individual utilities for each unit. 

There were lease violations disrespecting the other neighbor's leased space and harassing the other neighbor and they smoked in the property against lease, lied about conversations, has made up stories about plumbing issues that plumbers couldn't find causes to, tried to get a dehumidifier and force me to pay, accused me on two different occasions very agressively in regards to the heat/electric service.

I recently relocated to Arizona, drawn by its rapid industrial growth, particularly in high-potential sectors such as semiconductors and electric vehicles.What I Bring to the Table:I have hands-on experience as a real estate agent during my college years and am currently exploring opportunities to transfer my license to Arizona.

Non UL electrical, plumbing &HVAC materials.

Learning how to use the correct tools and materials for a job, YouTube videos and even ChatGPT will help you get through 80% of the problems you will run into.My rule was I would not mess with HVAC, plumbing and electrical Or if it would take more than a few hours. 

The roof, AC, plumbing, electrical and flooring will eventually need replacements.

did half the flip work, sold with new walls and new electric/plumbing.

My husband did 90% of the work himself, only using contractors for large electrical, plumbing, and construction projects.

Quote from @Aaron Wolman: I would call the companies (gas/water/electric) to get estimates, or an estimator out there.