As far as notifying the Tenant of your upcoming inspection, if they typically reply to you via email, use email (it doesn't matter whether they consent or not; it only matters than any reply is a confirmation of receipt - ensure it's the same Tenant email address used in previous correspondence), you can use text as well but not as your primary, if they don't reply via email send your inspection notice via USPS with 'proof of mailing' (allow time for deliver before inspecting @ 7 days) - highly recommended in this situation regardless.

If you ignore the issue after it is brought to your attention, that can be seen as implied consent.

The LLCs should have documented their consent to you replacing one loan with another.Various complications are possible, depending on the details of your setup.

Allows for tenants to change locks (after written consent).

Without the written consent of the SELLER first had and obtained:A.

Evicting tenant and property is owned in a trust, for example "Jane Doe Revocable Trust," Jane Doe is the owner.

She changed the locks without my consent.

You cannot change the terms of the tenant’s lease without their consent until it expires. 

  :)  I think you are on the right track with questions, but the big thing I noticed is you have 4 children so #1 on your list of things to do with your attorney is setup a revocable living trust first and foremost. 

The lender got the escrow company to contact my POA without my consent, and without me reviewing any sort of a closing document to make sure everything looked good on the loan.