A friend of mine signed a prenuptial agreement in New York a few weeks before marriage and did not have an attorney.

This is not filed anywhere as a public record. She appears to have grounds to challenge the agreement depending on its terms it can "sunset" but...

If your divorce attorney does not do what you ask of them or return phone calls, do you have legal grounds for litigation?

Your attorney has an ethical obligation to communicate with you. How often they communicate with you depends upon the need both they and you need...

Is it legal for a landlord to tell a tenant that they can not have people spend the night unless they are on the lease?

Certainly in New York State a landlord cannot limit who you can have as an overnight guest in your apartment.

Who should I pay my rent? Landlord or board of Condominium

You should only pay rent to your landlord. However, if the condominium board has sent you a statutory notice advising that the owner(your landlord)...

The statute does not require three business days notice, only three calendar days.