[NiOl]

Думаю, что на "букву" также стоит дать права Системе и админу (полные), чтобы потом не корячится.
Фирмы унаследуют права "DL name RO", Системе и админу а для Contracts .. Projects права будут без наследования (первая команда назначения без ключа /E).

Код:

@Echo Off
SetLocal EnableDelayedExpansion

set Wrk=D:\Test
set List=D:\Partners.txt
set Log=%~dpn0.log

if not Exist %List% (
echo Error: List-file not found!>>%Log%
exit
)
for /F "Tokens=* Delims=" %%P in (%List%) do (
cd /D %Wrk%
echo Preparing "%%P" at %Wrk% >>%Log%
Title Preparing "%%P"
set Letter=%%P
set Letter=!Letter:~0,1!
if not exist !Letter! (
md !Letter!
xcacls !Letter! /G "otccorporation\DL name RO":R
xcacls !Letter! /E /G System:F
xcacls !Letter! /E /G "otccorporation\Administrator":F
)
cd !Letter!
if not exist "%%P" md "%%P"
cd "%%P"
for %%N in (Contracts,Information,"Other Correspondence",Pricebooks,Products,Projects) do md %%N
dir /b /on>>%Log%

echo Y|xcacls Contracts /G "otccorporation\DL contracts FA":F
xcacls Contracts /E /G "otccorporation\Administrator":F
xcacls Contracts /E /G "otccorporation\DL contracts RO":R
echo Y|xcacls Information /G "otccorporation\DL Information FA":F
xcacls Information /E /G "otccorporation\Administrator":F
xcacls Information /E /G "otccorporation\DL Information RO":R
echo Y|xcacls Other Correspondence /G "otccorporation\DL other correspondence FA":F
xcacls Other Correspondence /E /G "otccorporation\Administrator":F
echo Y|xcacls Pricebooks /G "otccorporation\DL Pricebooks FA":F
xcacls Pricebooks /E /G "otccorporation\Administrator":F
xcacls Pricebooks /E /G "otccorporation\DL Pricebooks RO":R
echo Y|xcacls Products /G "otccorporation\DL Products FA":F
xcacls Products /E /G "otccorporation\Administrator":F
xcacls Products /E /G "otccorporation\DL Products RO":R
echo Y|xcacls Projects /G "otccorporation\DL Projects FA":F
xcacls Projects /E /G "otccorporation\Administrator":F
)

Вроде так...