You might schedule an automated email that simply lets him know you are still interested for your original offer. 

But if there isn't, I guess it will simply remain a black box.

No, depreciation is simply an accounting deduction allowed by the irs...it doesn’t affect value at all.  

Marketing a property you don't already own in expectation of any sort of benefit requires a real estate license.Wholesaling as described is simply unlicensed real estate brokering and the state of Massachusetts clearly says it's illegal. 

The minute someone is simply a passive party, this can get you in trouble.

They could be fairly expensive unless they've done this many times before and are willing to simply mold an existing contract to your situation.

Or simply hire property managers, or into a passive Delaware Statutory Trust or NNN commercial property.  

When the market turns, we'll simply write a check from our line to get into the next property.

Would love to hear what sites work best for everyone to simply to process and decrease vacancy rates.

I imagine simply based on how they made their business and money, there is an element of high risk / high reward.