First, you need to understand your loan to value ratio. The LTV is the difference between the amount of your loan and your home's value. It is easy to calculate your LTV. Simply divide your loan amount by the value. For example, if you borrow $135,000 for a house value at $150,000 , your LTV will be 0.9 or 90 percent.
Also remember, that you will have some expenses during this process. Talk to a mortgage broker that can review your documents and advice you properly.
Best of Luck,