Are you allowed to start renovating without their consent?

Next step is mutual consent.

It would need to be fraud by Wife... otherwise not without Husband's consent. 

Most of the cases have been resolved by consent decrees providing a variety of types of relief, including: retrofitting to bring inaccessible features into compliance where feasible and where it is not -- alternatives (monetary funds or other construction requirements) that will provide for making other housing units accessible; training on the accessibility requirements for those involved in the construction process; a mandate that all new housing projects comply with the accessibility requirements, and monetary relief for those injured by the violations.

You can't trust them as they brought in dogs without your consent.   

If you're considering sending messaging without opt-in consent these days, don't. 

So I would have to assume you have signed consents from all the guests that their simple personal info will be collected?

In almost all situations, the client is best served by having the listing forwarded to other data bases, imo any agent that does not check that box (without the express consent of the client) is violating their Realtor duty to their client.

The apartment complexes I have dealt with will take a scanned copy of the application form with signatures as proof of consent.

I spoke with 5 different attorneys, all of which stated the samething: in NH the lease is viewed as a contract between consent adults and those terms are considered first.