When will I know to get out of the house?

[Angel.R]

Long story short for those who don't know.Bought house in 2006 for $275k on a 80/20 interest only the house is worth $165k now but been a tip employee my budget has taken a major hit down here in FL and just missed my fourth payment this month so decided to walk away.So trying to stay on the house as long as possible trying to save up to start renting,my question is:

When will I know is time to get out of the house?I mean I have read about the NOD.Will I be getting a certified letter telling me I have a amount of time to vacate the house?

Or will a sheriff will show up and stamp a sign on my lawn.What should I expect?Just worry about it as yesterday I already received a certified letter from a law firm trying to collect the 4 months I own from my first mortgage and it says that if I don't pay by the 3rd of October my loan will become due and owning and failure to meet this requirements will result in the commencement of a foreclosure action and the lost of my home.

Thank you guys I know that the time we try to stay in our homes as we try to save varies but trying to prepare my self and my family.