Some credit unions may keep the mortgage in-house, but afaik it's mostly private banks working with HNWIs that will do so 100%. Those mortgages are often very l

Some credit unions may keep the mortgage in-house, but afaik it's mostly private banks working with HNWIs that will do so 100%. Those mortgages are often very large or non-standard (like 100% financing interest only or a combo mortgage/heloc).