Hmmm...Jim, the song seems to represent the ire of a potential house buyer at his lawyer who has fooled him into inspecting a house which is up a mountain, in a forest and has been subject to serious subsidence.
The buyer is also expected to pay a large deposit presumably on a mortgage. The author uses humorous "double meaning"(as you have often done) to achieve the desired effect. One example was the leaving of the house buyers "deposit" in the lawyers fountain.
If we accept Ronnie's view, the line and verse become slightly pedantic?