Just a weekly stream of strangers can make locals feel less secure about their environment.

I am just speaking out of my own personal experience on this subject, but a few things I have learned when dealing with a STR in a cold environment are:Hot tubs are the difference between staying fully booked and dealing with vacancies, never buy used hot tubs because they're junk, rodents will look for ways to live inside of the components area because it is warm all winter, people will 100% have sex in your hot tub and you have to keep up on cleaning and changing water and chemicals, the mountains tend to knock out power and your hot tub can freeze up and crack the pipes, and if there are neighbors nearby then you need to lock the cover or else they will help themselves to sitting in the hot tub. 

With traveling nurses and workers to combat the growth of the city its a perfect environment.

Can being profitable and good for the environment coexist?

Nicholas,Most condo associations have coverage typically referred to as "bare-walls", "walls-in / original design", or "all-inclusive" style coverage per the governing docs of the association. 

Whether building or buying, house-hack numbers are harder to make work in general on 2-4 unit residential buildings in Denver; factor in the higher interest rate environment and it makes it even tougher. 

Also in the current environment, a lot of banks are tightening up lending right now so it might be tougher than say a couple years ago to get this type of financing.Here is a good breakdown of Multifamily DSCR Loans vs. traditional CRE Multifamily Loanshttps://www.biggerpockets.com/...Also, I recommend BP's Find a Lender tool as well for searching out and shopping lenders!

If the tenant sees that I care about their living environment, then they tend to care also.2.

This would likely be the best for the environment vs buying raw land to plant trees on. 

Through my W2 environment we service our clients with BIM VDC engineering services for Construction Permitting documents.