Some guests simply unplug it when they need to charge their phone, as they don't see how their stay is disrupted by removing the hub. 

That's what I think a fair price is.It does depend on how far it is to the roofing supply store, how far it is for the workers to travel, if there's any rotting wood that needs to be replaced and how busy they are (busier = higher profit).You could buy a couple ladders, a compressor, a 100ft extension cord (14/3), 50 ft of rubber air hose, a roofing nail gun, a caulk tube a couple shingle removers and pick up some day laborers who know how to roof. 

If you ask the manager to justify a fee and he starts hemming and hawing, move on or require them to remove the fee.

Cons are the cost involved in (both time and money) and loosing out on having a professional to guide you through the process. 

But you can also loose some or all of your money if you do not perform your due diligence and watch your investment closely.Happy investing.

This may be a loosing proposition for someone looking to get rich quick/do this as a side hustle.

Transfer some of the property to LLC and remove her from the original LLC.

When prospect of alternatives is removing such lead boot's, and remaining in top 10 of national economies..... it's viable.... 

If you ask the manager to justify a fee and he starts hemming and hawing, move on or require them to remove the fee.

Not sure how much you are paying each month for your locks, but I see it is as a small price to pay to use their online portal to be able to remotely set/remove codes.