What is a Decent Offer for a Hard money lender?

[Jessica Flint]

I'm to the point in my business where I need to start talking to investors.  I'm wondering what a good starting point, as far as terms, would be? 

I'm thinking that I would like to offer 10% of the loan amount and offer interest only payments until I pay them back in full.  Is up to 18 months too long?  I also understand that they would be on title as well until I pay them off in full.  For example, if I borrow $50,000, then I would pay them $416.67 per month until I refi, taking no longer than 18 months, then their name is taken off title and I pay them back the full $50,000.

Are those reasonable terms??