I'll make a couple of points since this is something I follow closely. I will just bullet these points and let you make of it what you will:
1) Interest rates are going up. And they may not go up a few percent, but in the double digits. I am thinking probably over 10 percent perhaps even over 20 percent. The situation in the bond markets is really ugly for a lot of reasons which I wont get into here, but suffice to say the impacts on interest rates could be severe. The bond markets (US Treasury Bills) will be the final determinant in how high the interest rates go up, not the Federal Reserve. Everyone thinks the Fed sets the interest rates, this in NOT true. The Fed has no control over the real interest rates in the market. So whatever mortgage loan agreements you sign, make sure you are protected from rising interest rates, because they ARE going up.
2) Given the above, what happens when interest rates go up? People start missing their house payments, homes get foreclosed on and they flood the market, which adds to the glut of homes already on the market but cant be sold because of high interest rates. This bids down prices of homes. You can reasonably expect that any house you buy now is going to decline in value against the loan you have against it. Even if your rates are fixed they will still go up relative to the value of your home. It's just like bonds, when there is less demand for the bonds, the price of bonds fall and the fixed interest rate the bond pays goes up correspondingly, that is, the real rate goes up.
3) The real estate loan companies and appraisers are in bed with each other. Expect the appraised value of the home you buy to be a good 20 percent or more over what it is really worth on the market.
4) Be very careful with the loan agreement you sign. Some loan companies include clauses in the loan agreement that will allow them to immediately foreclose on you home for frivolous reasons, such as being late on a payment. Have a lawyer go over it with a fine toothed comb. Never sign anything in haste and demand that the loan company remove a clause you dont like. If they dont agree find a different loan company.
5) Consider that maybe now is not the best time to buy a home. Maybe it would be better to wait for rates to go up and house prices to fall and then buy a home. If you can afford it, save your money and pay for the house in full. There are investment opportunites that do well in a rising rate environments, maybe you can hold your money in those investments until you are ready to buy a home (that is when house prices are much cheaper than what they are now

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6) All the above is strictly my opinion, I am not an economic guru.
