The phrase 'with whose help' is correct and usable in written English.
You can use this phrase when you are talking about the aid someone has received in achieving a certain goal. For example: "She was able to make her dream come true with whose help of her friends."
In 1608 Laud entered the service of Richard Neile, bishop of Rochester, with whose help he secured a succession of ecclesiastical appointments.
As the hostess of the Scarron salon, she had made powerful friends, with whose help she had obtained from Anne of Austria, the queen mother, an allowance of 2,000 pounds.
So, too, was Stephen Hastings, a Tory MP with whose help he set up the Shield Committee, designed to combat subversion, a phenomenon Crozier described as the "political equivalent of Aids".
In 1209 he married the much older Constance of Aragon, who brought him an urgently needed troop of knights with whose help he gained control of Sicily, defeated a conspiracy of the barons, and was partially successful in regaining the crown properties that had been lost during his minority.
For this reason, hyperspectral RS constitutes an ideal, cost-effective and comparable approach, with whose help vegetation traits and changes can be quantified, which are key for ecological modelling.
The biggest question for me is not whether Obama can deliver (answer: yes he can) but when, and with whose help?
All of these moves appear to be fine with Russia, whose help is necessary in any sanctions regime against Iran.
One of his biggest supporters described him as a "reform cowboy," disinclined to work cooperatively or, in some cases, even to communicate with those whose help he needed to achieve his goals.
But right now he has been doing a good job of patching up relations with the people Rudy Giuliani feuded with, particularly those whose help the city now needs.
And it would only further sour relations with the Democrats, whose help the White House will need if it wants to pursue other aspects of Trump's agenda, such as introducing permanent tax cuts and launching a big infrastructure program.
That alliance of lawmakers was headed by Kenji Kosaka, a member of the ruling Liberal Democratic Party, whose help with pushing the movement into the upper echelons of Japan's notoriously bureaucratic goverment is irrefutable. .
