B O L User - aren't you in Texas? If so, then the answer is going to be probably not ever. Since the Texas laws are so strange, you wouldn't want to make someone a non-HELOC home equity loan to purchase a 1 to 4 - you'd want a purchase loan. And you wouldn't want a severely restricted HE when you could write a much less restricted Home Improvement loan. Hope that helps!
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Opinions my own.