If it is a flat roof, it is important to see are there watermarks?

Watermarking your photos is about the only thing you can do. 

I stopped using Craigslist several years ago; ads get stolen so easily (even watermarking the pictures) and often get lost in the continuous postings for "rent to own" scams on that site. 

.- Uneven floors / Soft spots.. typically it is a easy repair most of the time when you're already replacing the floor- Messy wiring in the breaker box.. most electricians take pride in their work and if it's messy it's a good sign of handyman grade rewire- Bad circuits.. a tester is $10-$20 and can save you thousands- Painted over issues such as termite damage & water marks.. check for the cause of the damageYou'll also need a general knowledge of construction to better understand & spot things such as plumbing, wiring, foundation, & septic issues.. most of the time things are hidden.If I were you I'd get an inspection or a contractor to walk the property with you - good luck.

I can say to keep scammers from posting your pics, I was advised to watermark your pics.  

In Japan, tsunami stones - standing in place for centuries - remind people of the 'real' high water mark."

They also have the vistaprint watermark on the back.

But a few days in I noticed water marks and what looked like mold on top of my ceiling in the shower.

We include room sizes and other pertinent facts about the property to attract the right prospects.Touchup PicsTo avoid crooks copying our pics and running fake ads, we watermark all our pics with our log and phone number.

Given the fallout of the last real estate cycle, appraisers get uneasy appraising high water water mark sales.