I found several online, but would like to hear from other investors what is the best option out there. 

So much can go wrong- major repair items that you've missed, the market can soften, vacancies, inability to refi, etc.

Even if Gillim wins the governorship, and if there is a major blue wave that swings the state senate, the Republicans will still have a major majority in the state house that will temper a lot of those initiatives.Source: http://mcimaps.com/floridas-2018-state-house-rankings/

The opportunity for investors to purchase a desirable property quickly is a major reason to seek private lending.

If you plan to keep all of these long-term, you could do a portfolio loan and combine all 6 into one portfolio. it sounds like they're cash-flowing, which would be the majority of the "qualification" on portfolios, and you could take cash-out based on a combined LTV on all 6 of them.

I had read online average household use for a month is 3k gallons...Is it even possible for house to use over 13 thousand gallons in a few days ?

Either hire an Attorney to do it or you can go online with the state and file it all your self: https://www.nj.gov/njbusiness/registration/you will also have to get a FEIN number as well, which can also be done online.: https://www.irs.gov/businesses/small-businesses-se...and you can get an llc formation book/ binder ( usually i get the 1st one - #6) here: https://www.mburrkeim.com/outfits/compact.htm

The road on which it is located is a major street (3 lanes each way) that has become more and more commercial with each year. 

Thanks Mihir, I was wondering if I could find those actual numbers online instead of through the seller or the seller's agent. 

What other major expenses should I be factoring in?