He did everything on an iPad, took pictures as he inspected/found issues, and compiled everything into a very detailed report.The second inspection was done on a property that I purchased long distance.  

I found a house that used to be a bar/restaurant but the town changed the zoning to only allow single family properties in that area.

This is the only way pretty much that I have found.

Timber story was my favorite, successfully taking advantage of a niche you found.

Seller property had patio and Jacuzzi permit but during the sale process utility lines  was found and cause title issues.

After doing an extensive search I have found 4 property tax liens an IRS lien and a 1000 dollar delinquent water/sewer bill.

We are holding $30,000 in escrow against any damages and have a hard 30 days deadline for him.Our exit strategy would be to put new appliances and clean up and put it right back on the market for $235-$240k.The seller found out about us through referral from another seller we had marketed to.You never know where your deal would come from. 

Has anyone found that this is a cost-effective thing to do?

I found the webinars & podcast and have listened/watched every one of them.

I understand the importance of bringing value to the table I have leads that I would be more than happy to share with you that are home owners who I have found myself unable to assist via wholesale deals but you may be able to assist them as a realtor.