You will save thousands in commission, you did all the work, why share a huge chunk of your profit with someone who just unlocks the door and shows people around?

I'm looking in to Reonomy right now. seems like they can unlock some true owner contact information. 

In essence, they're basically saying there's a certain sequence of steps to follow that, if done correctly, magically unlocks this pot of financing which the banking industry or creditors will not tell you about. 

and what do you personally look for when unlocking hidden value?

Luckily, I didn't have work and was able to arrive within the hour and unlock his unit for him.

If you can be a reliable go-to type contractor who need minimal babysitting and occasionally anticipates the investor's needs ("hey the subfloor is all rotted out in the bathroom, do you want me to refloor over it or I can replace it real quick") or goes above the call ("I'll stick around a 1/2 hour to let the cabinet delivery guys in so you don't have to drive cross town in rush hour just to unlock the door"), you don't need to be rock bottom on price.

As for the responsibility, what should be said in that part is if a tenant's own negligence somehow caused the break-in (i.e. like if a tenant left his door unlocked and wide open) - I can change that.

Not accounting for missing numbers, though, (I sure wish I could unlock THAT mystery!)  

I don't worry about my place being left unlocked anymore. 

Search for Oakland in BP and I'm sure you can find a lot of advise.You can also do it in San Francisco (as I'm trying) but you don't have the same rule above to unlock value.