Talk to a CPA for advice based on your goals.Reinvestment: Instead of paying off properties quickly, reinvest your cash flow into more properties to grow your portfolio faster.Rent Increase: Look for opportunities to increase rents or add value to your current property to boost cash flow.Consider focusing on multi-family properties for better passive income.

Also, does this apply to an owner who owns and manages their own portfolio?  

However, once a portfolio is properly diversified in a rather small number of different investments, the portfolio has reached maximum risk aversion by diversification.  

Our team works exclusively with out-of-town investors and have the support program in place to help build a strong portfolio.

My goal is long-term investments for cash flow and to grow a portfolio of RE over time. 

Another key benefit is diversification; an SDIRA allows you to include real estate in your portfolio, reducing risk by spreading your investments across different asset types, which isn’t possible with a standard IRA.Moreover, assets in an SDIRA often enjoy protection from creditors, adding a layer of security to your investments.

@Jeremy H.there is no need to self manage for the passive investor looking for a fixed NNN return in the 15%+ range.Smart business owners and retirees looking to diversify their investment portfolio are not looking to run a hospitality business. 

To start my portfolio, I intend to buy a property in my area to retire my mother from New York.

I would reach out to the Property Management Company because their portfolio of properties includes the investors that own the properties.

This method is helpful if there are time constraints on obtaining a cost segregation study, but it is not the most accurate.SAMPLING OR MODELING APPROACHIn this approach, a cost segregation study is performed over a sample of a large portfolio of properties that are very similar in terms of appearance, use and construction.