Sounds like a pile of liability for any researcher too.  You are providing what is online without the ability to access records locally or, in some cases, confirm that the effective date of the records is accurate.  In a few online records systems, the government service provider does not even post an effective date for their records, leaving the public to guess what the date might be.  Given also that most online "telecommuter" records indices have extensive disclosures and disclaimers about their not being reliable, how do you go about providing any assurance of due diligence for work done from many states over?  Answer:  you simply can't do so without lying through your teeth. 

  Example of problem:  San Mateo County, California is "online" but provides only index data and no document images on the internet.  You can see a deed number, date of recording, names of parties as they are indexed, conveyance tax, and situs city, but nothing else.  No effective date of the data is posted on the site.  In addition to this, on a daily basis, the County Recorder has un-indexed instruments from the prior day or two that do not get indexed until late in the morning.  In a county just across the Bay, the Alameda County Recorder is often weeks behind in their indexing.  How you can account for such things from a great distance?  As I noted above, again, you simply can not do so.