Finding maintenance issues prior to them becoming a larger problem (water leaks, pipes, roof etc.).

I currently pay $15 per hour for contract labor for simple things like stripping a roof, cleaning up junk, mowing, etc. 

These would be properties with good roofs, windows, siding, and mechanicals.2.

➡️ Has any work been completed on the roofs in the past ten years?

you can challenge the value with an accountant, appraiser, etc most markets have a person who charges a flat fee to lower it. in Columbus Ohio most of the people that do this have a guarantee to lower it or it's like half the fee 

Miami is way too constrained by HOA and your insurance on anything there will be through the absolute roof.

Newer windows, roof, kitchens, bathrooms, HVAC etc.

Eventually there's going to be a site that's good for owners, probably a flat fee model, free for users and the savings will destroy VRBO and Airbnb.

Really wish realtor fees were flat rate for leasing or at least 2 weeks rent vs 4....I have a nicer unit but it's by no means "luxury" and it will rent in two seconds with no real marketing needed...definitely not 4k worth of work for a realtor imo...

After inspection, we discover there's drywood termite damage, moisture/water leaks seen from the attic and ceiling, roof doesn't have a permit with old patches.