DIY will be the "cheapest" - you can set up an account on the MA DOR website, register your LLC, you pay over the whopping $500 MA charges you to register an LLC, and voila, you are off to the races.

So if I liquidate money from my business credit cards and open a forex brokerage account and pay for a trading bot, is the money i use to pay back the credit cards and trading bot taxable?

Dig up our own attorneys/accountants etc.

Or could we just have them switch the accounts on the back-end once all three meters are back in place (I say three because my unit also has a meter).

I would double check with a real estate lawyer familiar with the laws in your state.  

Feel free to check back in with me.  

What recommendations would have to improve our agreement structure to account for the risk?

Investors - I have 25+ years of public accounting experience in the real estate space at your disposal.

I share this not to discourage you from embarking on this project with you as a manager, but I flip homes and have seen for myself the incredible savings in time and money that can be activated when you have the right person overseeing the project and who has the relationships with the subs that can make sure to push them and hold them accountable.

There are also additional costs of operating and maintaining an LLC, like separate bank accounts, annual report filings, tax filings, etc.2.