If you can afford the mini splits and can live with the single-point source (i.e. to heat/cool the place all the doors need to be open), much better:1) Your tenant gets about 50% off his electric in winter2) Your tenant gets A/C and you get dehumidifier which keeps moisture down3) Baseboards are notoriously inefficient and usually get a sofa shoved in front of them4) If electric and not regularly cleaned, I think they're a fire hazard.

It is my first post here so please be gentle :)Thanks to all for your assistance.Kind regards from Miami.

@Dell J. thanks for the gentle nudge, I'll continue moving forward and try to get out of my own way :)

The feedback I am getting is basically I should send a letter to the homeowner that asks, gently, if they are willing to discuss selling their home.

In general - Unless you know the property has only skin-deep stuff you can fix FOR SURE - I'd hire an inspector to look for stuff like foundation issues, moisture invasion, everything is to code, major mechanical stuff, life on expensive stuff like HVAC/roofs.MHs a little easier though, but don't know the level of rehab you want to do.

Also if you have a guy that knows, look for edges like joints and chimneys for potential for moisture invasion6) Crawl space and moisture and barriers.  

The main thing with any kind of pavement treatment is to keep surface moisture from the soil beneath.If the paving is in good shape (i.e. no alligatoring or potholes) and looks like it's graded OK (no standing water after heavy rain), a seal coat can add life to the property.   

At the end of the day, I will have a new chimney, a new washer dryer (it was a stackable and older), a gently used washing machine and a new tenant who is paying $300 more a month than the previous one.

They make moisture testers if you need one.  

I wouldn't do that.A gentle reminder is usually sufficient.