The phrase "acknowledging all that" is correct and usable in written English.
It can be used when you want to recognize or take into account previous statements or situations before proceeding with your point.
Example: "I appreciate your concerns, and acknowledging all that, I still believe we should move forward with the project."
Alternatives: "considering all of that" or "taking all of that into account".
We wanted to do a very different kind of story this time, and circumstance gave us that opportunity: while acknowledging all that Federer has achieved and the singular genius of his tennis, we wanted to focus on the challenge he now faces and his prospects going forward.
While it may be uncomfortable at first, it gets easier the more you sit with these feelings and honor yourself by acknowledging all that is really going on under the surface.
Acknowledging all that, Mr. Garten warns them that active or passive, they are targets of the growing backlash against corporate globalism.
The simple act of acknowledging all that we have is often enough to ease up the stress and let us relax into the holiday moments just as they are.
By slyly acknowledging all that Walter had become in his pursuit of power, the show hoped to have him not redeem himself, exactly, but push just far enough over into the "not entirely evil" side of the ledger to stay alive long enough to get back to Albuquerque and carry out his own form of justice.
The incident was an urgent reminder of a problem that even the National Football League seems finally ready to acknowledge: all that on-field headbanging is taking a serious toll.
I certainly acknowledge all that your paper does to report news accurately and efficiently to the public.
Without saying much, they acknowledge all that was lost in those years of unimaginable change.
The problem is that these methods do not acknowledge all that is involved in the production of variation in the quantitative traits of organisms in a population.
Robshaw, more animated than in any eve-of-match address, acknowledged all that and more.
I respect and acknowledge all that they have done for me in their support.
