A city inspector can come onto your property in the furtherance of his duties, signs or no signs.

Yes. The landlord can do that, particularly when it's in the Lease. You should read it.

Most banks won't notarize Wills. Just find a notary in your area.

See an attorney so that the removal is done properly.

If your employer views it that way, it is. Your error allowed confidential information to be disclosed to someone not authorized to receive or...

Really, nothing. You cannot prevent him from filing a lien if you cannot work things out. If you are sued to foreclose the lien, hire an attorney...

I don't see a path unless the ex GF consents. This idea of adopting your ex GFs child is not a good one.

You don't have a legal case. Perhaps a letter to the state board of dentistry, but the dentist probably has a much different version of events....

Unless there's a provision in your lease to the contrary, the LL can do pretty much anything. It's his property.

You are not attorneys, so you cannot provide legal advice.