There are a few houses that I really like, 4 in a particular street to be precise. How would I go about making an offer to the owners (I only want to buy one, but any of the 4 will do if anyone is willing to sell)? I've never attempted something like this before. Would I write a letter? Contact a local real estate agent? Hire a buyer's agent? If the latter, would it be cheaper since there will only be a very finite number of requests that I need him / her to make?