If you own (2) properties free and clear you could simply do a cash out refinance. 

You simply stack and bolt together the rings to the height you want.

With the current mortgage rate constraints affecting how many buyers are willing to enter the market we are seeing a lot of borrowers have success with the BRRRR strategy with plans to sell in the next 3-5 years when interest rates go down.Researching potential LTR and STR rental amounts and seeing if holding for a few years is a viable option is a good analysis to do well. 

Post pandemic, the secret is out and investors can no longer 'simply' operate a nightly vacation rental in most cities and regions.

@Mario Morales, to echo Bradley, I would say this depends on what you are lacking in your own knowledge base.To some (probably many investors) the agent is simply an initial filter for them.  

The country simply does not have enough affordable housing units, and the new supply of affordable housing units is not keeping up with new demand.

This means there may be less competition from professional investors, especially in areas where the demand for owner-occupied homes is strong.In short, if you are just entering the real estate market and don’t yet have the capital to compete directly with investors for multifamily properties, focusing on single-family homes could be a more strategic choice.

Most amounts are too small for the hassle, and again, that becomes litigation, not simply an audit.Creative finance buyers, I do not believe it's a winning argument to the IRS to say that you bought the property, didn't make the payments and you took the write offs anyway.

You'll simply sit vacant for a few months, lower the price then get a tenant.

Also, what if I hold financing in my personal name on some of these properties and I have simply moved them to the LLC for additional libiliaty protection where as I have to move them in and out of the LLC when I refinance?