Shaundm - 12:12 pm on Sep 15, 2005 (gmt 0)
My opinion is to just tell him that you are spending a great deal of time on his projects and that you will in future need to charge him, as you are a business. He should understand.
In my line of work "quantity surveyor", we are liable to be sued for ANY advice we give, whether it be free or to a friend down the pub. For that reason I/we do not give any advice at all withoutout there being a fee agreement in place, which then means we are covered by our insurance. Could use that reason.?