"my your recommendation": my opinion

[Mark Mandel]

Ron asked:

>>>>>
1. Can one convey the notion 'the recommendation that I wrote on your
behalf'
by saying "my your recommendation'?
<<<<<

No.

>>>>>
2. If not, why not?
<<<<<

It feels dead wrong. If I heard it, I would take it as a correction: "my[,
I mean] your recommendation" and suppose that the speaker meant

     my [that I wrote]
I mean
     your [written in your behalf]*

As to why, my off-the-cuff answer is, Two possessive pronouns in a row.
Does such a construction occur anywhere?

I would say, for short, "my recommendation of you" or possibly "... for
you".

*Blast and damn, I've forgotten the (largely theoretical) difference
between "in" and "on" here. Which one is which?

-- Mark A. Mandel