Some states require a long formal court process, during which time the person in charge (executor or administrator, aka personal representative) may have certain interim powers to sell real estate before distributing to heirs or beneficiaries.Other States make it possible to get a single court order distributing real estate to heirs or beneficiaries without the need of the lengthy interim (formal) probate.Still other States permit a really informal, simplified method of transferring real estate from a deceased person to their heirs without court involvement.Hence, you you've got to know the State, the basics rules for that State and what's required to purchase in order to know when the sweet spot to market to a probate seller is.

Or that they’ll be able to use a highly sophisticated technique that can really only successfully be utilized when all the stars align and in circumstances that occur irregularly and need to be recognized as such, always by an experienced real estate investor.  

We do have an annuity, social, 401k distributions, pensions,   Consider those when you decide how much to invest in Fixed income.  

I received 1.5% annual return for three months and now they paused distributions.

Dont distribute anything until your accountant does the tax calculation then reduce your partners final distribution accordingly 

@Brad Kanouse,If you take a distribution from an IRA - it will be subject to taxes and penalties.You can convert your IRA into a "Self-directed IRA" and have the IRA buy the property, in this case you are not the owner, the IRA is.

I was thinking about an strategy of doing Cash Out Refinicing putting that money in the stock market (distributed in ETF and some "safer" stocks) to get around a 6% anual return (estimating that low because is the "standard" average, however my current stock portafolio has a cummulative return of 66% in the last 4 years).

For distribution connected projects, the property needs to have close proximity (ideally adjacent) to a utility substation. 

Full return of capital & accrued upside to pref equity before common equity gets distributions from capital events, including return of capital2.

Many techniques we discuss here (like brrrr) are ways to combine 1 and 2 to get higher returns--but we should not deceive ourselves brrrr is a combination of a construction business with real estate investing.