The value of an apartment is not based on comparative sales analysis. 

They are my goto for info on new products and their service call data is invaluable.

We service seller take back mortgages on investment properties and we have found that sellers can usually  get a higher sales price by holding the financing.

What services are offered to have a real address for mail and potentially mail forwarding. 

That way, all of our locks are in the same app and have the same functionality.For exterior deadbolt locks (front door, garage door), we used this:https://a.co/d/2SFMNcy For normal interior locks (bedroom), we used something like this (the ones we have are currently unavailable, but this has similar capabilities):https://a.co/d/8C6nYenYou can create codes from anywhere without the locks having internet connection because it can create them using an offline algorithm.

The roof is serviceable, but likely has 5 yrs or less of life. 

You have $100k in appreciation in two years, which dwarfs the increase in property taxes.Whether to hold or sell is based on future estimated IRR of what you own vs estimated IRR of other opportunities.

Next thing you know my customer base writes bad reviews, stops coming, etc.

@Jonathan GreeneAgree 100%. be transparent and if good news great - bad news - still share it with investors - realize they are making life choices based on what they may be telling you as an example of someone has $100k investment and you fear it’s going to go to foreclosure - well maybe they would not spend $10k on that vacation or buy a new home knowing they are getting wiped outUnfortunately there is a group of guru syndicators who are great marketers / sales which some I have personally spoken with and they are so full of it and just like to hear their voice their ego gets in the way.

Our Basic (free) service uses data up to 3-years old.