It is at the bottom of page 46 of the mortgage documents, right next to page 47 which is left blank deliberately.
(I jest not - my solictor pointed it out to me a long time ago on IP#4 or refi #9 - can't remember which) :D
They can & they do & they have done so. Especially if their client is on their radar in bad times - usually with loans over $1-2M with one lender.
That is why canny investors will only do 1 or 2 loans with one lender and more with others - to spread their risk around.