Julian,
The fastest way to destroy a friendship is to do business with them!

I have learned never do business with family or friends; never loan money to family or friends.
Even though intentions are good; when something goes wrong the relationship changes forever.

If I were you I would agree to go on the route with him; maybe work a bit to see if it really is what you want. Without any commitment on your part; just get paid for your time and get lots of information.
The 50/50 makes me uncomfortable. And there is no guarantee when you are buying a list of customers.

When I purchased a business I paid 2 month's income yield for it. Lost 30% of the accounts due to competition, wrong information; lack of keeping up previously, etc.
Good luck,
Texas Girl
