Leading providers of electronic signatures services offer advanced authentication methods, like linking a signature to a password-protected account and email address to prove who signed the document.

In the end, they are really investing in YOU, so make sure you are authentic, knowledgeable, and confident.BTW, the above assumes you are not talking about family offices, small funds, etc. 

I make a real and authentic effort to incentivize them to take care of my properties and reach out if something isn't right. 

Just be authentic and ask good questions like you listed above.

Everybody likes to talk about their wins and sound like a boss, but I think a person talking about their big loss, how they can identify every detail that went wrong and why, and how they will be doing it differently next time, speaks authenticity and true intelligence.

Be authentic.

But it only cost me $135K.I own a 2 bedroom authentic log cabin  near downtown Gatlinburg that does $65K a year.  

It's the authentic touches of communication that you build the relationship with clients year after year.I use clientlook but nothing amazing.

It always boils down to, get the property under contract BEFORE I list it on the MLS,  Well the few people I ended up at the very least developing rapport with, and might even end up being involved in the final sale, were those that- rather than trying to confuse me and persuade me of a lowball value, they would offer an authentically superior perk,. 

Being authentic is the best way to build a following.Why would you need to hide the fact that you are going to renovate the properties you buy?