Find a lender with a history of doing business with your agent. The relationship between the lender and your agent can help you get that loan program that best suits your financial circumstances. If they have established a good business relationship previously, then they can work as a team and help each other achieve their goal, which is to get you that loan that works for you.
If you are a home buyer who does not know how to go about with the whole home buying process, all the paperwork could be very intimidating and confusing. Ask for your lender's or agent's assistance. They can give you the information you need in order to make a sound decision.
There are a lot of loan programs that lenders have for your mortgage that you can evaluate together with the lender and your agent, before choosing which one is best for you. Take time to study these options and don't just commit to what the lender presents to you without evaluating the other options first.
If there is something that you don't understand about anything in the whole home-buying process, do not hesitate to ask. Have the lender or your agent explain all the terminologies that you don't understand. You are bringing them business, so catering to you is part of their service. Do not agree or commit to anything without understanding everything. Some lenders or agents who are only after their own interests may use big words to try and confuse you into agreeing, but a good lender or agent will take time to explain what you do not know. Knowledge will protect you from making innocent mistakes that you will pay for in future.
Lending is a business, so lenders are keen on making business with you. Examine all available options before making a decision and try negotiating. If you have a variable rate loan, you may be able to negotiate to a fixed loan.