Check with a local title agent and ask if they're authorized to issue a policy w/o exception for the prior owner's interest if you get a deed.

There are noise regulations in each municipality, if someone is violating noise restrictions its a matter for the authorities, not the PM. 

This bill would authorize the owner of an accessory dwelling unit built before January 1, 2020, or built on or after January 1, 2020, under specified circumstances, that receives a notice to correct violations or abate nuisances to request that the enforcement of the violation be delayed for 5 years if correcting the violation is not necessary to protect health and safety, as determined by the enforcement agency, subject to specified requirements....Good luck

Just call your credit card and have them add her as an authorized user making sure they use her social security number and date of birth. 

Subleasing and running an authorized business in my house?

I remember when they built the Frost Bank tower on Congress and it was the tallest building at that time around 33-floors plus an extended roof.

I have been reading that Biden is requesting Congress to extend the moratorium to the end of the year.

Ask the title agent to check with their underwriter for authority to issue the policy with an exception for lack of access. 

Congress, the Fed, the Treasury, the media, and exchanges aren't going to team up to protect us, we need to do that for ourselves.

Contact your state housing authority to see what options are available.