Why has the Hayate no Gotoku anime switched studios so many times? The anime version of Hayate no Gotoku has been done by three different studios so far:


Season 1: SynergySP
Season 2: JC Staff
Movie, Season 3, Season 4: Manglobe


Each studio's version is a little different. For example, SynergySP focused a lot on parody while JC Staff focused more on romance.

I've seen a few shows switch studios once, but switching twice seems extremely rare.

Why has it switched studios so many times? Was the creator unsatisfied with what the previous studios did to the story? Was it just some financial matter?
(I'm Japanese, so please excuse my English.)
First a bit of background:

Season 1: This season was a Sunday morning anime in Japan. Sunday morning anime means children anime. SynergySP is known as an anime studio for children.
Season 2: After this season, Hayate moved to the midnight anime for adults in Japan. To produce an anime for adults is the contrary to the SynergySP's corporate philosophy.

After that, you can read the Hayate's author, Hata's thought:

TVアニメが始まります。
第三期ではありません。
今回は新アニメ。
新しいハヤテのごとく！です。

Translation

The TV anime will start.
It is not the 3rd season.
It is a new anime.
New Hayate no Gotoku!

As for your question:

I've seen a few shows switch studios once, but switching twice seems extremely rare.

Typically when the timeslot moves from a morning/children anime to the midnight/adults anime, often times you will see a studio switch.