Anyway to limit liability or have guests sign a digital waiver? 

I can send data.My whole portfolio is here cashflowing $300+ per door in good locations.Purchase: $80k-$130kRent: $1200-$1500ROI: Double DigitCash flow: couple hundred/monthAppreciation: Double digit (for past 10 years, will gladly send data)Location: C, B- (suburbs and certain markets)We have over a dozen Fortune 500 companies just in Metro Detroit with huge Healthcare and Auto industries.

The challenge for investors with significant capital/equity in smaller income-properties is that though positive cash flow is being generated, the CASH-ON-CASH return (%) on invested capital is typically low single digits.

There are a couple of local hard money guys that do low double digit rates plus points. 

Maybe do some comparing on processes different owners use, manual and digital tools they use, specifics on how owners calculate their projected and actual budgets and proformas (down to the details on what's included in "Maintenance" and what people break out into separate line items), budgets for real properties and, details on how people find and deal with vendors for different types of issues, how owners make decisions on materials and when things need to be upgraded, how owners are working normal jobs while landlording....There's some San Diego area nuances to all this stuff, and definitely a learn-by-doing thing.  

I was able to extrapolate how much my guests spend in town and it was into the 5 digits which is pretty good for a tiny town.They know that the town and area relies on tourists coming either by car or boat and spending the day and money.

They are out of Rolla and don't have a large presence in Waynesville, but they've done a good job for me. 

One as a pure rental and one as a primary-house hack style.I am trying to become more digital with my record keeping for the two properties and everything that comes with them.

You can really get a feel for their operation based on their offices and neighborhood presence.

Digital Zoom is pretty standard, but you need good optics (lenses) for the detail which can be critical.