Also provide tons of good / detailed photos along with property details critical for the investor to make a decision. 

I.e. contractor pulled all the drywall out, here are the before and after photos, we replaced the studs here are photos, and then show a before and after mold test that was completed on the house.

.), and you've made your House Rules clear, then don't sweat the small stuff.By that, I mean- you'll have guests who have 5-star ratings but can still leave a mess or damage (other owners didn't report accurately or it was complicated) but you have recourse via photo evidence (your cleaners, etc.) to ask for reimbursement (or use something like AirCover, etc.).

When ever I had gotten too persistent about sending photos, he would change the subject or find a reason why he couldnt document the progress.  

Although when I take my morning walks I snap a few photos to show friends they are much tidier than mainland homeless  MUCH.. but they are all over Honolulu and the Park across from Ala Moana shopping center.. so you have 5 mil condos and homeless.. and then every day there are 5 to 10 wedding photo shoots ( young Japanese couples) where the homeless are camped out. 

Then get photos and get third party verification that everything was done right prior to making your final payment to the contractor.

Flying in monthly helps, but having a local contact (realtor, manager, or trusted partner) is key for regular updates.Use tools like progress photos, video calls, or project management apps to stay connected, and schedule visits at critical stages of the project.

PM me if you need progress photos, and hang in there.

I see some hosts doing an "I forgot" box and adding that to their listing photos.

We always offer.We take photos before move in, for us not the tenant.