On the downside, HELOCs have variable interest rates, so your repayments will increase if rates rise. Another risk: A HELOC uses your home as collateral, so if you don't repay what you borrow, the lender could foreclose on it.
Equity agreements allow entrepreneurs to secure funding for their start-up by giving up a portion of ownership of their company to investors. In short, these arrangements typically involve investors providing capital in exchange for shares of stock which they will hold and potentially sell in the future for a profit.