I search around for a situation similar to your own and found this, which is of the more impressive timelines on an out of state probate case I have seen. This was done as a summary proceeding which expedites the time and saves you as the client money.
http://www.oscn.net/dockets/GetCaseInformation.aspx?db=oklahoma&number=pb-2014-578
It seems to mirror elements of your issue, except the above case was more complex than your own. The law firm can be found in the case.
There are also many good attorneys on this site and can be located in the market place button at the top.