Question about foreclosure

[Account Closed]

If I pay my mortgage off and own it outright, the bank no longer has it's hands on it. If I then go buy real estate with leverage as an investment, and there's a crash and I have to foreclose on that real estate, could my house be taken away because of the debt involved? Or no because I own it without a bank? I'm assuming they can repo anything, but I'm new to this and don't know much about foreclosures. Thanks