@Jorge Caceres Is this with electric baseboard heaters or  heat pump/minisplits.

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

The company managing our property as a vacation rental was unable to get the power turned on in our condo for months because we had to get the meter switched into our name with the electric company (which is much more difficult to do in CR than in the United States).

, status of major building components (roof, HVAC, structural, electrical, plumbing), accounts receivable aging (are all tenants paying or is the $20,500 schedule rent?)

Simple touches like fresh paint, landscaping, and clean walkways can make a big difference.Highlight Key Features: During the appraisal, point out any high-quality materials or unique features you've added.

Easy to clean and safe. 

The property does have heated radiators through out each unit. everything is separated for each unit electricity, gas, and window units in each property.

Thank you for your input.Keep a cheat sheet for your property(ies) with color brand/codes for each room and common info needed such as appliance info, fridge opening HxW, etc...Paint should be standard sets of colors for all the properties you have.Flat means hard to clean, repaint it all.

A few public projects have cleaned this up but the area has never prospered since.

I had several tenants complain that they are impossible to keep clean.