My head is spinning with all this LLC talk. 
As a sole abstractor and owner of my company, I can tell you right now that the fees just to belong to an LLC to get work from would not benefit me at this point.  I just moved from SC back to NC and found out that the fees for a current owner search in NC are far below what I was paid for a current owner search in SC.  So right there I took a drop in income.  One abstractor here gets all the searches from a major company because she gives them a great low rate and makes up the difference in volume. So there I lost an account that I had in SC that had promised (and was excited that I was coming to this area) that they would send me some work in NC but did not.  
Then when I look under the SOT business directory that I am listed in, there seems to be many, many abstractors listed in the counties that I search that will search 300 or more counties across the USA.  Common sense tells you that they are not located in my State.  So on a rotating job placement list with this LLC, I would not get my share of the searches off the rotation list.  Those abstractors that search all over the country and in the counties that I search would probably be contacting me fourth tier and request that I search for them at pennies so they can recover for their fees and the fees they paid to the LLC for the original search that the LLC got for them but not for me because of the rotation schedule.  Are you dizzy yet? 
Leave well enough alone on the SOT.... I get requests from title companies and attorneys for searches because they have common sense and realize that if I search only  3 or 4 nearby counties that I am efficient, skilled, and knowledgeable in those counties.
Besides I don't think that the title companies would value a service like what you are proposing when they do their own marketing to find all the newbies and cut rate abstractors.  Just my opinion... but you would have to show me that this system is working before I would invest in it.