IMO unless you plan on generating income with the lic or maybe are getting access to the MLS to invest in an area that is not getting multiple offers, your time/money can be more wisely invested in marketing or networking or actual investing. 

Yea I thought I was applying for an investor intern position, ended up in a KW meeting with multiple others.

So multiple mortgage inquires onto a consumer's credit will not impact the score (within reason).  

Or should I use the equity on my house to make down-payments and purchase multiple duplexes.  

VRBO/HomeAway were purchased by Expedia so there will be multiple vertical channels that will provide exposure for our vacation rental.

I was dealing with multiple people from the company where correspondence was lacking.

It's already a multiple offer situation, so it would need to be cash or hard money to close.  

What I have is multiple checking accounts for the LLC for different systems.

Sometimes the banks put the price out there ridiculously low looking for multiple offers. 

I have a LLC where I have multiple rentals with 15 years mortgages