Sometimes, a Co-op Board seeks shareholder approval to modify an existing proprietary lease.  Your New York real estate lawyer can work with your Co-op and advise you what steps are necessary in order to amend a lease provision.

Commercial Leases
If your Co-op Board wants to rent commercial space on the ground floor to a store, doctor's office, or other business, or if you are a prospective commercial tenant who wants to rent from a Co-op you should have an attorney listen to your needs and draft a commercial lease agreement.

Sublease
If you want to sublet your cooperative apartment landlord, it is important to have an attorney draft a sublease for you to spell out your rights and your subtenant's responsibilities under the agreement.  Your attorney can work with you to try and prevent problems with subletting your apartment before they happen.