I have a non-technical friend with a question I can't answer, but I'm sure an answer does exist. She is a property investor and owns houses that are all very close to each other. One is across the street. Another is on the other side of a fence, pretty much in the back yard. At present she is faced with having a separate Internet account for each house (Orcon). She would like to have just one account and be able to share it between the houses. This is beyond my technical experience, but I would think something like a wi-fi extender with external antennas might be able to cover the distance, or otherwise some kind of private radio link. Can someone explain the options for something like this?