Perhaps you could get creative with some sort of sub lease situation as well on a larger home with a MIL. 

Does anyone have any creative ideas to go beyond this?

I'll have to get creative.

We are wondering if we should transfer the New York residence or incorporate it into our LLC that we have for the Florida rental property so that we can receive a larger line of credit to use as properties become available for purchase.

When I walked out of that office, people had smirks on their faces expecting me to be back in Corporate America within 3 months because ya know, "it's tough out there, 90% of startups fail, real estate is risky and the list goes on".

However, the downside is that unless you are buying a distressed property or using creative finance, most banks are going to require you to put at least 15% down (but 20-25% is more common) for any investment property. 

What kind of creative financing has anyone done to get into multi-family projects?

They were inspirational as they stated i essentially performed on my promise to buy via a creative way, and essentially did what a Realtor (before I became one too) would do and find a buyer for the right situation.

@Dan LingerI started investing when I was in corporate America and it didn’t stop me.

Might have to get creative.