Hi Jerry, you can withdraw money tax-free and without penalty from your Roth up to the amount of your original contributions. So if you put in $11k that has now grown to $13.5k, you can withdraw $11k and do whatever you want with it. But if you liquidated the account, you would pay a 10% tax on the $2.5k that are your earnings over and above your original contributions.
However, as you'll see in this rather dry IRS publication https://www.irs.gov/publications/p590b/ch02.html, you can avoid this 10% tax if you use the amount over your contribution for qualified exception, including the purchase of a first home.
You say that you are currently renting. If you have not purchased a home in the past, you might want to consider buying a duplex for yourself and renting out the other half. And if you want to take house-hacking even further, you could take on a roommate or air bnb a room in your side of the duplex. If you want to retire in 7 years, you will need to be creative!
As for the rollover IRA, the IRS will let you withdraw up to $10,000 for a first home purchase.
https://www.irs.gov/retirement-plans/plan-particip...
You can call Vanguard or Fidelity or whoever is holding your accounts and they can help walk you through the rules and the process.
Personally, I would avoid gutting the accounts. The contribution portion of your Roth account is a decent back-up to a cash emergency fund, which you need in life generally and definitely if you want to be a real estate investor. Something to consider!