Rolling over 401k and traditional IRAs into SDIRA

[Sandra PIrtle]

I have already converted one IRA into a SDIRA for real estate investment. Once I retire, I will have control over an IRAP (IRA as part of a union pension plan) and a 401K.

I have spoken to the union's plans administrator, and he says that I will be free to roll over both accounts as soon as my retirement is finalized. 

My account manager at the custodian of my SDIRA said that I can roll both accounts over into the existing SDIRA.

It seems that it would be simpler for me to manage my real-estate portfolio, if it were not scattered around. (I already have properties purchased outside of the SDIRA).

Would there be any advantage in keeping the accounts separate?