Also, it will be good if I can get an idea of total out of pocket expense before SBA loan , not including down payment.Site surveys, soil testing, environmental studies, archaeological surveys, perk testing, wildlife studies, code variances, and I can keep going on and on and on. 

You can also have soil samples taken before removal to ensure that there is no leak and many companies will give you a firm price for removal and remediation after thats done. the last thing you want is an expensive environmental issue so make sure you know the status of the tank before you close.

Like a previous poster had stated I would remove your steps and regrade the slope of soil and just pave an additional parking or put a concrete slab there.

The soft florida soil and high water table leads to these slipping overtime.

This way all the funds will be underneath of your Solo 401k umbrella in the brokerage account.

I feel like you really need someone who has the entire operation under control and ultimately save money withDesign plansPerc Test (soil testing) Title 24Structural Engineering

Again, I am a bit of an old New England purist when it comes to these things but I have done more than my share of stripping houses of vinyl and aluminum at customers requests, and found all types of garbage underneath.

Any sort of floating floor needs to be able to move (expand/contract), even solid flooring is sooo much easier to deal with if it's not run in underneath cabinets.

I may have considered the LLC partnership with two LLC's taxed as S-corps underneath each owned individually by the two partners.

As for the topography shifts, we have engineers that do soils testing and based on the type of soil, make determinations as to what design standards will be necessary.You might want to consider using your last name on BP, it makes it possible for us to @mention you so you are notified when you are mentioned in a post, etc.