If you can qualify for it, get a HELOC or HELOAN on those properties.Or find a creative private/hard money lender that can tap into that equity in 2nd lien position or to cross-collateralize them with the purchase of the new property and use that equity towards your cash to close so you can buy that next deal without much cash out of pocket. 

You can roll it to a self-directed IRA (SDIRA) and buy real estate or privately lend, but you couldn't do that with your personal rental otherwise you would blow your IRA up. 6.5% right now is a great rate...it's lower than what you can get a 30-year fixed owner-occupied home for.

What is your favorite/most excellent Loan Servicing Software to run your private lending business?

Dealers/movers definitely know what they can get, and private sellers follow suit so you'd have to be motivated/connected AND be able to move fast to find a fair deal on a decent 'newer' used manufactured in the first place.I'd probably go new 75% of the time vs what I've been able to find price wise, used, personally..

What type of private lending financing do you recomend me? 

I recently saw a post from Anthony Walker asking experienced real estate professionals and those newer to the business about gaining a competitive advantage and it got me thinking about what competitive advantages a real estate private equity firm can attain in their business.

Maybe a private lender or hard money lender would lend the balance.

These deals I analyze have come from borrowers looking for private money.

And the private sector fight against remote, that was a fart in the breeze for most part.

The home is spacious enough to house 11 young college students; at a local growing private college.