There are many mortgage issuers. So why not talk to a few before getting your mortgage? At times this might work out well. Like in the case of any important product or service that you intend to buy, make sure to complete your due diligence. Where money is involved, time is of the essence and other factors such as reliability and credibility need to be assessed. Understanding the whole loan process and the paper work involved can become a little too much. But this must be done to protect oneself from getting into incomplete agreements.After taking a mortgage, some buyers are in a fix as they do not know how to get out of the mess they are in. All this is because of lack of preparation and awareness. Some of the other common mistakes made by mortgage buyers are:1. Consider a mortgage to be a long term commitment - Sometimes buyers do not do this. They look at loans as an option for ending their current dilemma. If one wishes to invest in real estate, they need to think about what the house will fetch if sold and if they will be able to sell it. All this must be discussed with a banker or a real estate agent before signing on the mortgage agreement.2. Documentation, Agreement, Paper Work - Some buyers do not give this enough importance. If they are not in possession of the contract, the companies may cheat them or they will lose out on certain benefits that were discussed during the meetings.3. Borrowing Limits - Buyers assume they will be eligible for any amount of loan from the mortgage company which is not true. And even if they offer you the same, you will end up paying high rate of interest. This will only add to your financial woes. You will have to work towards repaying your debts as well as struggle to meet your interest payments, so one need to think it through before agreeing to the same.4. There might be hidden costs -- When closing the mortgage deal, buyers have to make some additional payments such as legal fees and taxes. Redemption penalty might also be charged if the loan is cleared before the stipulated time. Better prepared than sorry! So, it is best to talk to your mortgage company about this before jumping right in.