Corner of two sets of lath - stud is behind the corner

[chrissy_a]

The plaster was coming away on this wall so I've stripped it all away. I now want to attach plasterboard but at the corner where the two walls meet the stud is behind the level of the right hand wall. When I come to try to secure the plasterboard, I don't know how I'm going to secure the edges. Working from the left, there is no gap between the two sets of lath to fit plasterboard in between, and if I fix the board so that it meets the right-hand lath, then the edge will have no stud to secure to.
Is there any way I can create a secure corner that both sides of plasterboard will be able to attach to?

 

[RandomGrinch]

Take down all the laths - it's really not that much effort - and it makes excellent fire wood!
If the prongs on a hammer don't get rid of all the nails, a tack lifter will take up the stubborn ones.
It's also gives you an opportunity to fit insulation in the voids, this can help with heat retention and may help reduce noise.

 

[chrissy_a]

Thanks Grinch! But even once I've removed the laths how will I fix two sides of plasterboard onto the one stud in that corner?