They all have their own separate oil tanks/electric meters etc. and there is well water.

This separates you from the business, avoids commingling funds, and helps with accounting and tax return preparation.Good luck. 

If not in the city, and not in the ETJ, then it's a lot easier, provided you can get water (probably need to drill water wells so thats a separate ground water district) and sanitation (some sort of onsite sewage treatment).

I need to get a separate liability policy, hopefully one policy that covers multiple properties, in the event someone tries to sue.

I have three different tenants all paying separately for one house. 

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

He is not trying to open a personal account; he is trying to open an account for the 401k, which is a qualified retirement plan and needs a separate account.

Keep in mind the foundation is not the only issue, when there is foundation issues there is usually other internal issues that go along with it, (wall separation, Possible broken pipes, floors etc) so give yourself plenty of wiggle room for repairs.

For business owners, having a separate legal entity, such as a corporation or limited liability company, provides the unique ability to create a credit identity with business credit reporting agencies, also known as a business credit profile.Reality check:  > Funding your business with your home equity or personal savings/guarantee is a HUGE risk  > ~45% of Small Businesses applied for a Business Loan in 2023  > Less than 2% of SBA Loans are actually funded/approved  > 29% of Small Businesses FAIL because thee run out of Capital  > Your company’s name on a credit card is NOT corporate credit (if you used your FICO score to get it)  > Business (EIN) credit will open new ways to finance your growthIf you keep doing what you've always done, you'll keep getting what you always got!

The real question for you is, will the DST separate the ownership without making you sell it?