I know of one and have been told about another one.
Plamen Markov is is Elhovo. He speaks reasonable English, but also has a translater for hire for 20 leva a day. If you are stood outside Bulgarian properties turn left and is a few doors down on the the same side. It says his name on the window.
His address is ;
7 Targovska Str.
Phone 00 359 478 88249 office
Mobile 00359 887 331629
There is also another one, so i have been told, Again if you stand outside Bulgarian properties in Elhovo, turn right and go around the corner and cross the road on the same side. His office is above the notary office about 2nd or 3rd floor.
I can't recommend either, just know they are there.