Can Airbnb be done with this?

[Jenelle H.]

Hello all.  I am asking this question for my sister as both her and I are totally unfamiliar with short-term rentals.  She owns a fourplex in Los Angeles which are fully rented out to long-term tenants (1850/mth each unit).  One of her units is about to become vacant and she is thinking of moving into the unit herself for at least part of the year.  She lives out of the area and wants to do this so she can spend more time with her newborn grandson who lives in L.A.  The problem is that she lives off of the rent she collects from these units and will be hurting without that 1850/mth.  I suggested to her that she look into using the unit as an Airbnb rental.  It's a 2 bedroom/1 bath renovated unit located about 15 mins from LAX.  I would say it's a B- neighborhood.   Do you think this is something she could do for say 6 months of the year and how much do you think she could make?  She owns the place free and clear.