Why? You should be able to explain why and how you’re doing this in 1 page.
This is simply a protoype and I have spent over $35K just getting this business where it is today
Can I ask on what?
This may sound self serving on a design forum, but the design of your product is the single most important thing for you to get right, and you have not got it right.
This style of modular Lego furniture gets mooted every spring when the new crop of design students graduate. It has never, ever caught on. You should ask yourself why that is.
More importantly: build some stuff and sell it! Start small! No research you can do, consultants you hire, or patent applications you file will ever substitute for making a product and getting it into people’s hands. Surveys are useless. Your friends will always say they love everything. Once someone hands you their money, that’s when you have some information you can act on.
Hire a designer- a couple thousand bucks spent there is worth far more than some unenforceable patent. Abandon all patent activity and stop throwing that money away- the kind of infringement first timers are so scared of is vanishingly rare, and you can’t afford to litigate even if it happens. Have professional prototypes made. Sell a few products at cost to your friends and get real feedback on all your (likely wrong) assumptions. Read about the sunk cost fallacy and be prepared to act on it. Don’t fall in love with your own work to the point that it blinds you.
Anyway, that’s my advice. (I’ve done what you’re attempting, starting with a website and shipping from my garage 8 years ago and slowly bootstrapping it up ever since. We’re exhibiting in Milan this year.)