Insulation of walls and cielings in the unit , Window type, and room size.

I usually prefer to invest in insulation and air sealing to justify electric.

Purchase price: $135,000 Cash invested: $50,000 Sale price: $293,000 Living flip working full time job-full kitchen remodel-replaced all plumbing-new duct work with insulation-relocate and redesign fireplace-full 1st bath remodel-add 2nd full luxury bath (double shower, bidet, radiant heat)-convert sun room to 4th bedroom with radiant heat flooring-replaced all windows-upscale woodwork inside-repaint whole house inside and outside First 4 years forced equity and another 4 years market bring us another surprise with icing on the cake (market going up) Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

Its insulated, power is sub-metered, concrete floor, automatic garage door.

Most of them are not overly concerned about recessions or booms because they invest in working class communities where the rents are fairly stable and are insulated from the class A product that comes online.

There could be rot going on, insulation getting wet, mold forming in various places.

The home inspection revealed the following big ticket items:Possible asbestos in the following locations:Popcorn ceilings of Unit 1 (peeling, must be replaced)Attic insulation of Unit 2Basement tile of Unit 2 (badly damaged and crumbling due to water damage years ago)Windows that need to be replaced (exterior shingles are asbestos)60 Amp service boxes and Knob and Tube electrical throughoutI'm looking for advice from the BP community on these issues. 

@Luis Rodriguez  You can do soundproofing by adding insulation in the ceiling  between the first and second floor. 

Asbestos insulation came at some stage in this process.

If you can, try to insulate between the main level and basement as efficiently as you can to reduce noise between floors.