This has a lot of administrative overhead, the LLCs being disregarded entities may pierce the corporate veil.

If you're interested in a Franchise; I would contact HomeVestors corporate office and ask them who the mentor is in your area.

I had to take a break from my RE business because of my corporate career.  

What are best corporations or banks to use for this?

Plus, it simplifies the process of adding partners for future projects and helps keep your finances organized.As for BRRR, you can also deduct expenses and LLC income is reported on the owner's personal tax return, avoiding double taxation that corporations face.

NV Corporate Headquarters.

Corporate rentals are a niche.

If you're co-mingling your finances, you will have negated any liability protection a proper corporate entity structure could provide.

I’m also thinking about using an S-Corp or another passthrough entity for tax purposes.I'm looking to scale my real estate portfolio, and I know that starting sooner rather than later will be more beneficial in the long run.

(Promissory notes or corporate bonds) Issuing debt gives your investors a 1099, because those payouts create a tax event.