It's a good time to be a seller in Boston. Most have the luxury of picking from several different buyers, many of whom will be offering cash or concessions like a waived finance contingency or inspection. One thing is for certain, they are unlikely to seriously entertain offers from buyers who are not pre-approved. This is one of the main reasons that pre-approval is a critical FIRST step when house-hunting. In other words, you should definitely be visiting your lender's website before Zillow or Trulia. Today's Tuesday Tip comes from our friends at Mortgage Network, who put together this post offering several other reasons why pre-approval should be your first step.