Public records have information on every sale in your area.

I don’t have the exact answer for you, but since this is a public form and people offer their opinion, I’ll offer you mine.

Also there are probably paid options that pull public records like landglide, propradar etc, or try your local title company rep. 

Purchase price: $70,000 Cash invested: $20,000 Sale price: $135,000 2 Bedroom 1 Bath 900 sqft fix and flip home located near public elementary school in an area that is getting fixed up.

it is a public information, once paper work is done, takes 40-45 days and anybody can find out how much you actually paid.

In my market they keep reducing parking requirements while removing public parking.  

It’s not fair that those people don’t have to register so everyone knows where they live but because sex offenders do it means they don’t have a right to live in nice places when all they want to do is get their life’s back on track but the rest of the world blacklists them or tries to hunt them down when it’s nobody’s business but the police and they should be the only ones who get to know where they live but the government has ruined that and put sex offenders lives at risk by putting their info out for the public even after they served their time.

Small fees involved, but nothing publicly recorded. 

You can create custom maps to mark areas of interest, track properties you're considering, and note key amenities like schools, shopping centers, and public transport.

What they do is hold a certain amount of their portfolio in liquid assets (for example public REITs).