I think you were being way too nice prorating their rent when u had a working furnace..... unless the furnace is some kind of a safety or health hazard....... you shouldn’t have to replace it, and I agree with Brian Larson, if they are misusing property because they don’t like the furnace, I would make them pay for repairs......or evict them.

According to 105 CMR: DEPARTMENT OF PUBLIC HEALTH 410.400: Minimum Square Footage(A) Every dwelling unit shall contain at least 150 square feet of floor space for its first occupant, and at least 100 square feet of floor space for each additional occupant, the floor space to be calculated on the basis of total habitable room area.

Health reasons will not allow them to climb stairs, more demand for 1 story properties and they will make excellent tenants.  2.  

So even though him and I are literally investing 30-60 minutes apart, we are investing in areas where the demand for condos, how they are run, the financial health of the condos in general varies greatly.If condos are a viable investment in your market, you want to look at some things.

Just network and keep an eye out for people who share your interests and mentality.

Entering it without being fully prepared financially and mentally  is another. 

As it relates to Paradise many retirees there and so health care is important and shopping.. 

Pay check to pay check mentality. 

The park I purchased is currently empty after years of decline with an older owner that apparently was in poor health.

mentality, but, again, if "just do it" means I lose money from poor decisions, then why bother.