To work in a law firm as a real estate law clerk is hallal

Aoa i am working in a law firm as a real estate law clerk. As you know, there is mortgage involved in almost every transaction. I have to print all the bank documents for signature. And also have to prepare the mortgage charge which is registered by the lawyer. I need to know that is my job is hallal.

Wasalam

May Allah bless you.
From what you have described, I do not feel that it is permissible to do this job. The reason being that you are somehow, supporting interest based transactions.
It would be better to look for another role as soon as you are able to.
If you are dependant of the income you are currently receiving, then you can continue until you find something more suitable.

And Allah knows best!