So the outside shell of the home is insulated properly. 

Also make sure the seller has the proper trailer tie downs or you will get stuck with a 2,000 upgrade like we did. 

Also ask about how the plan design, protects your family from devastating healthcare costs, how it ensures your family will actually receive and keep their inheritance.

As @Brett Goldsmith mentioned they can Not talk to you without the proper authorization form executed and submitted (would you want your mtg company talking to any random stranger that called in about Your debts?).

Are there any good ways to ensure this?

Offering a discount on monthly rent will more or less help close the deal and ensure I get a good renter. 

It also needs about 50% of the floors replaced, windows, some drywall, paint repair, new porches and egress stairs attached properly and/ or replaced. 

Many agents do not properly explain these things as they only focus on price. 

. - assuming you're close to/in Boston proper and on transit, no shortage of roommates versus families here, and you wouldn't be limiting your prospective tenants too much.

The Operating Agreement must contain language sufficient to address IRA-related issues concerning Prohibited Transactions (26 USC 4975), The Plan Asset Rules, the allowance of subsequent or additional Capital Contributions and Unrelated Business Income Tax (including language that ensures that the Manager of the LLC will prepare and file all necessary tax forms with the appropriate taxing authorities, Federal, State and local).