I've done this in numerous common areas (hallways/stairwells/etc) for the updating of lighting & for fire alarm devices.

Not sure about your area, but here in Texas, the title company "insures" based on the taxes being paid, unless of course you took title subject to any prior taxes owed, which would not be smart, but they would then show up as an exception to coverage.

An example is buy a modern thermostat using smart phone to control them remotely without the redundant wiring. 

Although if you are smart, then you are working with impact to get your tenants all paid up.That is what I have been doing here in Columbus, Ohio.

You are wise, smart intelligent.Good job man, SERIOUSLY, awesome keeping yourself in check.OK, online pics are a great start but no one will take pictures of the bad stuff ..

Now, my advice comes with the caveat that you have to make smart moves with the cashflow.

Those are very smart steps to prevent getting unfair reviews, it's a very professional and polite way to earn guests trust by giving you more personal and private feedback about their stay; also it's a good way to know if it's worth to ask them to leave a public review.Having a guest book seems like a nice way for knowing better guests behaviour! 

A smart investor should always verify what they find on public listing sites with an agent with access to the MLS OR the public tax records.

It's home to The Ohio State University with nearly 60,000 students, 5 fortune 500 companies, over +25% population change since 2000, 2016 smart city challenge award winner gaining 50 million dollars in funding from the government, Intel is spending 20 Billion dollars to build two semiconductor plants, and many many more great things presently and coming in the future.

I think it just results in smart people watching things happen.