Legal Question in Real Estate Law in California

Re: Tenant wants to open a day care in the apartment. What is the law on this?

Operating a day care facility is not a normal use of residential property. You can tell the tenant that you do not want a day care operated in the apartment, or that that rent will be increased to cover the extra wear and tear on the apartment. This rent increase could be substantial.

Re: Tenant wants to open a day care in the apartment. What is the law on this?

You can go even further. I do not recommend allowing them to use it as a daycare center at all because of the liability risk to you if a child is hurt. Tell them the unit was rented as a residence and not a business and if the try to open a business there you will evict them.

Re: Tenant wants to open a day care in the apartment. What is the law on this?

The tenant needs a license from the state to operate a day-care center. You should demand proof of the license. If the tenant lacks one, you have grounds to evict due to an illegal use. I question whether an apartment is suitable for a day-care center under the zoning.