Is there a limit on the number of Horcruxes a person can make?

[Kenneth Clark]

No: HPFGUIDX 162235

Jen:
> The reason I favor Nagini at this point is mostly curiousity, how
> Harry will use Parseltongue and other means at his disposal to make
> sure Nagini is destroyed--she is like Voldemort's second skin.  She
> would likely be the last Horcrux left before vanquishing Voldemort
> because she's the most difficult to get to in some ways as both an
> animate and connected with LV.  Unlike the other Horcruxes, he'll
> know if someone is messing with Nagini!

Ken says:  But we shouldn't assume that only Harry is capable of
destroying the horcruxes.  He isn't the only one knows about them,
both Ron and Hermoine are bound to be in at the kill and, depending
on who else they tell, we may well see others of the Order engaged in
finding and destroying horcruxes.

Ken