Hi All,
I have several questions about the option to lend your funds on bitfinex, sorry if these have all been answered I have searched through the site but can't find all answers.
1) Is their a minimum amount you can lend with regards to btc I.e. 5btc?
I don't believe so. AFAIK you can lend in any amount you choose, and your offer will be filled in order of interest rate and then time order created.
2) Is it 100% guaranteed that you cannot lose any of your btc through lending? Has anyone had a situation where they have came worst off?
It is possible, in theory to lose money if the market price swings against the borrower to quickly and too sharply. They do have certain risk controls to try to prevent this from happening but it is possible.