I personally am against the idea of using "professional" fundraisers because of human nature.
Here's why:
Increasing commissions soon can sustain an individual's lifestyle.
Eventually the "meetings over lunch", the "invitations to various affairs" which begin simply and honestly out of seeking each and every avenue from which to solicit donations from those capable of giving, begin to take on the "air of a very comfortable lifestyle in the presence of those blessed with material wealth and comfortable recreational pursuits.
Then, suddenly and with no warning, the fundraiser(s) begin to see a very bright and comfortable future in this sweet "fundraising" enterprise, as it silently "morphs" from a noble pursuit into an "industry".
This is how most Jews whom we in JTF consider "thoroughly corrupt" and "evil" became that way:
They began in earnest working to solicit donations for a cause in which most of them deeply believed, and then little by little were corrupted into "enjoying life and the fruits of their labors".
Then, the "causes" begin to appear as "necessary unpleasantries" by which they have been blessed to earn a good living.
I'll leave it to your imaginations to "fill in the blanks" about what happens once these "fundraisers" begin getting "honored" at "community gala" events and begin having "titles" of honor bestowed upon them along with large grants, donations, etc. .
The greater the success; the greater the corruption.