Insurance companies invest in the same asset classes, that generate roughly the same returns.

Speak to lenders, have a nice package together: they will want an SREO, your background, your assets/ income etc, they will want your "business plan", your underwriting, your capex breakdown line by line. 

Are there any loan products I’d be able to cash-out refinance into before 12 months of seasoning?

BUT, the might cause more issues because 550k is already on the small side for a 5+ unit building product. 

This Product is not ready....

Some assets could hold for decades.

Unless you do a big value add you just can’t find numbers close to what you mentioned for a “safe” asset.

Like any investment, due diligence on the market, asset, financing, and sponsor is critical, and working with an advisor to vet these options is worthwhile.I’ve recently helped several investors transition into 721 UpREITs as a gradual tax-deferred exit from direct ownership.

Even their mortgage products and target audiences have morphed to be both strategically and technically similar Here you can compare Fannie and Freddie.

In my experience it's easier to liquidate single family homes compared to other asset classes, that's why I like them better.