I then transfer my funds from my current bank using ACH or whatever online transfer methods they allow.

Married filing jointly, W-2 job that'd put us into the 15% federal capital gains territory.

I don't have any bridge loan recommendations, but I would suggest utilizing a Margin Loan if you have an Individual or Joint Taxable account.

There’s usually options like individual, corporation, LLC, TIC, joint tenants and trust.  

(I’m not a fan of most professional real estate coaching as many here can attest.)I would suggest you start by looking for local mentoring, jointing a local real estate investor association (REIA).  

One of the reasons for the bank statement requirements is so the lender can set up an ACH for payments. 

I find many people go this route but they end of causing a ton of heart ache come tax time and pay a lot in fees and company registrations which setting up this structure could be an overkill

They will specialize on all phases and development of the store from start to finish and be able to mark timelines and benchmarks for your contractors.I can’t tell you home many investors I have met that have done major remodels or developments without a construction attorney to hold the GC and architects accountable via a written contract.Most construction attorneys have a knowledge of creating a basic joint venture agreement between you and your partner that governs the financial responsibilities, areas of responsibilities and the resulting profit split.

When buying with an investors money, should you form a joint LLC?

The most common ways to structure this would be with a Joint Venture Agreement or an LLC with partnership language in the Operating Agreement.