Sharon is rightfully concerned about some of the negative effects that can come from rent regulation. There are many types of rent control/regulation, but most fall into two categories: stricter price caps “‘rent control” and less strict limits on increases, like a max 5% annual increase “rent stabilization”.

Generally, studies find that stricter forms of rent control have been found to help keep some existing low-income tenants in their homes, while raising rents for new residents, causing a greater shortage of rental homes, and worsening the affordability crisis in the long-term.
 

Rent stabilization can have similar effects, but generally does a better job of balancing these pros/cons. Here is a well written and concise argument for rent control/ stabilization.
 

BTU finds rent stabilization to be a valuable tool that bring stability to communities, prevents landlord price gouging, and reduce displacement. Sharon’s response suggests she is open to some types of rent regulation, and just wants to make sure lifting the ban is done in a way that reduces/prevents negative outcomes.