Originally Posted by Sly

Losses due to non-payment are part of business but you want to be taking steps to help mitigate risk. You aren't just losing money but also opportunity cost. Your lost time could have been spent working on another project or enjoying time with family.

There's nothing wrong with asking for some sort of upfront payment with not trusted parties. If full payment makes you uncomfortable, try 50%.

Originally Posted by Brian mike

now please re-read your self below:



Tell me are you still feeling bad?

I agree with a 50% deposit (mentioned above) seems to be a good idea for you.