Contracting a professional home inspector before buying Minnesota homes is a good way to ensure that you will not encounter any major problems after you've signed a contract and bought a house.

However, you aren't required to conduct an official home inspection until after signing the initial contract, so it's a good idea to learn as much as possible about the condition of the home by having an honest discussion with the seller, and even performing your own 'mini' inspection where you can check for basic structural defects or potential problems.

Sellers typically allow prospective buyers to inspect their home before anyone enters into any agreement. Barron's 'Smart Consumer's Guide to Home Buying' advises homebuyers to use a checklist in taking note of any problems and issues in the earliest time possible. The book further explains, "If you are thinking about buying a house that will need renovation or upgrading, the more value will be derived from your mini-inspection." The mini-inspection will ultimately give you a bargaining leverage when negotiating for the price of the home you are buying.

You need a checklist in inspecting the house to ensure that you cover all important aspects that you need to look at. The information you gather from this checklist can then be used to create a written report to help you in assessing the overall condition of the house. Here are some important matters to include in your checklist:

The age of the house - You should know exactly when the house was built. Find out if there are any renovations or upgrades done and when these took place. Ask if blueprints, architect or engineer plans are available.

Inspect the house's foundation - Check if there large cracks around the home and basement. You should also check for water or weather related damages. Ask the seller if the house ever experienced or experiences weather related problems in various seasons.

Examine the interior of the house - Keep an eye for any defects and other potential sources of problems in the interior of the house. Specifically, you need to check if all walls are even with no cracks and if all doors are easily opened and closed. Take a picture of any visible crack, if possible. Check if there are any molds, foul odors and if all water drainages and faucets are working properly.

Inspect the exterior of the house - Check if all windows and doors move smoothly and if these are properly insulated. Inspect the sidings of the house. Look for signs of deterioration.

Examine the heating and air conditioning system - Query the seller about the average cost of operating these systems in a month. You may need to have a new system in place if the old air conditioning system is already inefficient.

Take all the information you gathered and create a written inspection report. You may also use a digital camera or camcorder to take pictures or video clips that you can review later. Video clips and pictures will allow you to document your inspection in more detail. These visual documents may also give you additional negotiation leverage.