Then scrub all surfaces with a cleanser to cut the grease and gunk.

My problem got a lot better with some scrubbing with a plastic bristle brush and some ajax powder bleach, but its not totally gone yet.

The Weichert Lead Network consists of a national call center that takes inquires from the internet and from direct calls, scrubs them and then warm transfers them to a live agent.  

The courts scrub the social security data on criminal cases so the screening has to go by registered addresses, date of birth, name, etc.

Part of this, however, is trying to fill in the blanks where data doesn't exist or good records haven't been kept by the owner, AND gut-checking those numbers to make sure they seem reasonably accurate (I worked in brokerage long enough to know how badly those numbers get scrubbed!).  

air circulator that basically scrubs the air clean.

Get a few wire brushes and scrub the brick down multiple times. 

how about not wasting the ink and call him to say,  do you need free help for whatever you need (except scrubbing toilets,  etc, etc)? 

or putting down mulch around the scrubs?

From there you'll have to scrub the numbers provided and determine what acquisition basis makes sense and follow the procedure to do all your due diligence before going under contract.