Could I acquire the house by borrowing the 20% from a family member, then turn around and do seller financing to the individual?

Thanks for reading and appreciate the response in advance.  

@Mike McCarthy @Shaun PalmerThanks guys, I appreciate the quick response.  

As a result and from a tax planning perspective, individuals will process partial Rothconversions each year and higher amounts in years that they don't have high earned income earnings because the amount converted from the IRA to the Roth IRA is included in your taxable income for the year of Roth conversion.

I appreciate all of the responses. 

I am looking to expand my knowledge, build relationships and network with motivated individuals within my area.

Although I have read tons and tons of books, watch 100s of videos on REI; hearing the stories from you wonderful individuals is priceless. 

Thank you all for your responses.

The size of the mortgage depends on if refinancing individual loans or several under a blanket loan structure.

I hope to meet many like minded individuals and be able to ask questions and get help from as well!