How do I improve rentability and resale liquidity?

Think as if you are buying for both a future tenant and a future buyer at the same time.
The most liquid units usually have sensible sizes, clear layouts, good natural light, and operating costs that the market can justify.
After purchase, maintain the property well, keep documentation organized, and present the asset properly when marketing it.
If you are upgrading the unit for rent, focus on improvements the market actually values—practical finishes and smart furnishing—rather than spending on upgrades that do not meaningfully change tenant or buyer behavior.