Final answer:
The best advice is to discuss a tenancy-at-sufferance agreement with the current landlord.
Step-by-step explanation:
The best advice for the housing counselor to provide would be to discuss a tenancy-at-sufferance agreement with the current landlord. This agreement allows the tenant to occupy the property after the lease has expired, with the landlord's permission. It provides a temporary solution until the client can move into the new home.
Staying in the current unit until the landlord evicts the client (option B) may create legal complications and damage the client's rental history. Finding a seller who will allow her to move in before closing (option C) is unlikely, as most sellers prefer the buyer to move in after closing to avoid any potential complications. Contacting local Public Housing Agencies (option D) may not be necessary in this situation, as the client already has a lease and is looking for a temporary solution before moving into the new home.