But again its about recommending to them to pack a sufficient food and drink supply if a storm is possible.We also to try have ice melt and snow shovels on hand, extra blankets and stuff like that.To mitigate some of this think about a full time back up generator to keep the power.  

tons of real estate investing podcast on apple podcast such as BiggerPockets, Lifetime Cashflow through Real Estate, Multifamily investing made simple, just to name of few. don't forget to listen to motivational and self improvement podcasts because mindset is everything 

Usually the radiators are deal-breakers for me but I would be honest with yourself and ask your self who your tenant is. 

I have seen multiple properties with low asking prices and sufficient rental income to cover the note.

Self storage and country subdivisions.  

Upon move out and receiving a portion of the security deposit, we were charged an over $400 cleaning fee in addition to some normal wear and tear items because they exceeded the apartments self calculated normal wear and tear allowance.

I would use them myself but I self manage my own properties..

All the more reason to hire a good property manager, or if one insists on self-management, make sure you get to the property at least once a year.

Simple, the MTM tell them they need to go, I am not certain of PA laws, but I think a 30-day notice is sufficient, and or cash for keys 

Townhome/condo/SFR - rent by the roomADU / multifamily units - self explanatory Storage / Space rental - Rent extra space/bedrooms/garage for storage, driveway for car parking, etc.