at 30k, assuming that the proper government formatted forms are used (lawyers are involved, think we can assume that a given)...represents 2 hours and 30 minutes work on a production volume scanner. (leaving 5hrs and 30 minutes per day for backscanning)
Add enterprise OCR, such as http://www.brainware.com/ over top of a well designed document management system with a tad of intelligence thrown in (maybe that is reserved for that lowly clerk) to validate ownership transfer is properly reflected in the system, throw the originals (referenced by the doc mgt system to a storage box number, so when folks like drew who think paper is a must can go digging) into a numbered box and keep in in whatever bunker you like.
Next?
Total system expense for this for my county would be paid for by the taxes of the homes on my block., which, by the way, still has 10 empty lots.