Could someone please explain the mortgage interest limitations in the case of a NYC Co-Op owner?

One thing to consider is owner finance if you can. 

Whenever you see a retail strip with a for lease sign in it, jot down the company repping it, do a quick google search to see if they are third party brokerage or owner/operator.  

However, two unit owners have invoked the Maintenance, Repair, and Replacement (MRR) section of the bylaws, claiming that window maintenance falls under the responsibility of unit owners.

RentMarble has an easy to use platform for newer investment home owners.

I think all landlords and property owners and Those that are Pro property rights hope these laws sweep the nation.

(Heck, even property-rights-driven Colorado Springs limited STR investment properties.)But on Aug. 3, Arvada city council voted to allow Airbnb in the city limits in both your primary residence and in non-owner occupied rentals.

That gives a clear consequence to the tenant, and also gives the property owner a clear reason to evict (if necessary).If you're unsure about the legalities or the best approach, consulting with a property management company familiar with local laws or a real estate attorney could be invaluable.

For those following a STR rental arbitrage airbnb strategy (or homeaway or vrbo), in which you're airbnb-ing places that you've rented from someone else (with the owner's / landlord's permission, of course): do you report the income on Schedule C or Schedule E when filing your taxes?

you should get a RMLO or an underwriter to qualify the borrower. if its owner occupied and in florida you also will need to use a third party servicing company to service the loan which will run you around $450/yr. not an accountant but its my understnding unfortunately the interest income is going to be taxed at ordinary income and the principal will reduce the principal. how you offset the losses talk to your CPA.your best bet honestly is to just sell it and bite the bullet.