How does a HELOC effect a deed with multiple people on the deed?

[Michael Cote]

If my sister, my brother, and I are all on a deed to a property. What happens if one of us takes out a HELOC on the property? Do they have get the approval from the other two people to even get the HELOC? How will it effect the others credit scores if the HELOC isn't payed on time? Can the lender foreclose on the property if the HELOC isn't paid? Can they get a HELOC based on their portion of equity in the property, or can they use all the equity in the property? Many questions, I know, but all very important to know!