Brokers can get bank valuation done before even putting up a formal loan application. If your broker says he/she can't look for another broker who can. You can work with more than one broker and see who can get you a better valuation and better intrest rates deals. 

Things to do when you get a low valuation . 

1) Negotiate with vendor to lower the price and tell them you will back out from the deal if they can't. (If you have subject to finance clause of course)
2) In case vendor doesn't (in most of cases) wait for two or three weeks, and reapply a valuation through a different borrower and hope the use a…[Read more]