Since you would be dealing with maintaining a gas tank I would have all electric except a gas fireplace. 

There is no active electric and where the breakers were taken out of the breaker box.

the electronic keypad locks so don't have to deal with keysbut keep in mind batteries need to be changed like once a year

Battery Park City Exchange (New York City): The city of New York engaged in a land swap with the Battery Park City Authority, allowing for the creation of a new public school and affordable housing units in exchange for a parcel of land that was then developed into a high-value commercial property. 5.

The vast majority of electric dryers run on 220v.

Does anyone have any advice on effectively setting up temporary battery-operated cameras on a long-term rental property to deter break-ins and squatters while rent-ready repairs are being made before a tenant moves in?

Electric-needs a separate address or unit number.  

Make sure there are no Federal Pacific electrical panels. 

Gas or electric would be a much better option, safety wise, from a house fire standpoint, CO danger, or danger to children or pets from the open flames. 

At one point they fell behind by $2100 but has since caught up and paid me but did not pay the electric bill and it was turned off.