[splatcollision]

Find the "international association of home inspectors" or the equivalent. Talk to them, talk to their members, about how much work you'll be sending them.

You don't need to hire them - just subcontract with them. Kinda like what Home Depot does for installation work - they have a vetted network of contractors around the country that they schedule...

Good luck

[avalore]

In the UK the "home inspectors" (we call them Inventory Clerks) are quite often the letting agents as well.

In fact, with smartphones/apps many letting agents are doing these jobs in-house.

Disclaimer: I'm a co-founder of https://www.lettingcheck.com, so get quite a good overview of what the industry is doing.