I wanted to ask if anyone had any experience in the following methods of finding deals:- Foreclosure- Probate- Short sales / pre-foreclosureAny pro's & con's of searching this way?

I'm lost by your question but you want to focus on the income method to determine value.

Thank you @Jonathan R McLaughlin and @Justin Elliott. 

@Grant R. is that total closing costs or just the buyer/seller's side?  

Sure Yusuf, that's a very tried and true method of real estate investing that has done wonders for a lot of people.

I want to leave the method ( flip, brrrr, buy and hold, ect...) open to the specific property and circumstances. 

I want to make sure I have current info.As the title said I am looking for the best method of converting my 401K for Real Estate investing, SDIRA LLC, Texas SDIRA Series LLC or Solo 401K.From everything I have read I am leaning toward the Series LLC but it seems the Solo 401K has some advantages although I am not sure about liability protection. 

I have an investor I'm working with to help locate a property to use the BRRRR method.

Eventually it will evolve into more lucrative endeavors such as BRRRR (enough R’s?).

If your ultimate goal is to build a portfolio then the BRRRR method is the way to go.