My goals is invest in multiple property in the near future and that is why I'm looking for a solid way to build upon it. 

What of an agent who is licensed in multiple jurisdictions?

@Carol VenoliaIt seems to me after reading multiple online news articles from California recently that rents have become a huge *political* issue for activists in the state.  

But I’d be willing to bet it won’t hold the record for long.Local multiple listing services and individual real estate firms have listed and sold properties online for decades.

I have house hacked in various fashion multiple times over the years.

I have talked with multiple seasoned wholesalers and they all think the price is too high.

Since you are looking for a blanket loan for multiple properties, there won't be a fannie mae restriction and it will be up to your local bank (or whatever lender you use) to determine timing on when they will lend, and how much they'll lend.

Or is it possible that something that looks like multiple layers isn't actually multiple roofs?

Many Landlords get military contracts for their multiple holdings. 

Agreed, multiple times investor/agent no issues