I have ran across individuals who flip houses and am curious as to what techniques they use for tax filings when they are not incorporated under an LLC or S corporation?

This little freak got onto Photoshop and designed all custom graphics for my page and even my youtube channel to make sure it all matches.Duuuuude!

You'll need to be incorporated, and have experience as in investor.

Will incorporate this into my lead gen strategy. 

I’m a NJ resident and have an LLC incorporated in the state of NJ.  

I go door-knock the property before auction to see who's there, to see if owner or tenant, to see if vacant, to see if I  can get an idea of the property condition, and to see if a tenant says "yep, going to foreclosure and I ain't moving till they evict me"... now you purchase price needs to incorporate the $$$ for eviction and time that will take, then decide if worth the headache.  

I plan on investing in multi family homes and I heard that there are benefits if your incorporate yourself.

That doesn't get you where you want to be.If you are not collecting data, and if you are not incorporating some feedback loop always improving your methods... you are doing something that we like to call "winging it".Usually that is a bad thing!

A graphic designer friend of mine recently launched a site.

The Christian community is incorporated, and from what I understand this is how they pay for things as the individuals of the community share there resources and pool there money for expenses.