Not only will this put more money in your pocket, but depending on your goals, you can paydown the debt far faster with this method.

Some method of owner financing?

I just recently moved to Los Angeles and was planning on doing this method later this year with some kind of Multi-Family property (2 - 4 units). 

They don't require any particular method, but they do require it to be accurate.

Michael Kiley 30% is achievable realistically by applying the BRRRR method over and over.The downside of that is that it takes time to buy, renovate, and refi.

You're talking about a whole variety of no money down methods.

The budget is $400K. 1) HELCO  = all cash purchase with intention to refinance later on2) Refi on another rental  property = all cash purchase3) Conventional mortgageWhich method could save me some money at closing in NY and in the long run? 

@Bridget FitzpatrickCheck out this link https://www.biggerpockets.com/forums/530/topics/818478-determine-how-much-an-str-will-make-using-the-enemy-method

The Comp Sale method and REI in general have enough variables in them already for the average investor; adding in the wrinkle of buying above market value is not something I'd do in general.

Also, do you have a method to find them?