I'm trying to unlock some of the equity in that home to help purchase future properties. 

Heed the warnings (and opportunities) of those like @Arlen Chou that voice the risks - and what you can unlock.

To simply allowing anyone to go in with the lockbox code is similar to leaving the door unlocked...Yes, like @Ryan D. sometimes I get into the houses without agent having to show me (wouldn't be necessary anyway).  

Especially the part on unlocking the keys to getting a "yes" from your lender.

This is a way to transition a property and unlock higher rents and value over time.

I don't want to burn my Saturdays running around unlocking doors for prospective buyers/tenants or meeting up with contractors to pay them or sitting in front of the computer on a Sunday night to make sure I get the craigslist ads posted, and then turn my phone volume on max loud to make sure I don't miss any calls about my properties. 

If you qualify for REPS and own rentals, you unlock tons of tax benefits. 

Let's collaborate to unlock the full potential of your commercial real estate endeavors.Please do not hesitate to reach out at your earliest convenience.

Only additional fees I charge are for if I have go attend an HOA meeting due to the tenant, have to unlock their door, or have to replace something like a garage door opener.

But if I parked on the street and found my car had been towed and a valet ran interference with multiple agencies, negotiated a fair unlock fee with the towing company, ensured nobody had put a lien on the ticket, and then was there to help you jump start the car, I'd probably pay the valet more than a tip.