Lafferty is known to be on Leeds’ radar, with the Championship side keen to bring him to Elland Road in the near future.
However, Evans admits that the negotiations for the Northern Ireland have been frustrating so far, as the Whites have been trying to push through a deal for some time.
“Kyle Lafferty is a different proposition,” he said. “Our owner has had a few chats with his counterparts over at Norwich, and I have to let that process take its due course.
“It’s frustrating when you want to add to the group [that it’s taking so long]. But he’s a young man we identified from a while out, and he’s not made any secret that he wants to be here, but I have to be very respectful to Alex Neil and David McNally at Norwich, who ultimately who will have a huge say in whether the deal will happen.”
Lafferty has rarely featured for Norwich so far this season, meaning it would be somewhat of a surprise if the Premier League outfit did not sanction a deal.
Lafferty has also been launching a charm offensive on Leeds fans on social media since Leeds’ interest in him was reported, suggesting that he would be very keen on a move.
One deal that Leeds have tied up is Liam Bridcutt’s, with the midfielder signing on loan until the end of the season.
The Sunderland man has been influential since moving to Elland Road, and Evans has hinted that the move could be made permanent at the end of the season.
“We’ve tied Liam up until June, and then we will see what happens in the summer months,” he said.
Evans has also confirmed that Leeds are working hard to signing two or three other players, with Aston Villa's Jack Grealish the latest to be linked in the Daily Mail.
“We are trying hard to not only make Lafferty happen, we are also looking at another two or three players," he added.