clogged bathtub drain who fixes it?

[Jimmy S.]

Tenants are pretty good but she lost her job and now moving out 4 months into a 1 year lease.

All drains worked fine when moving in. Got a call today well the tub does not drain anymore. I went over and messed with it for 1hr and it looks really clogged. I pulled some hair out and I gave up after now getting anywhere . She "tried" drano but did not work.

Should I make her get a plumber out or should I pay for the plumber?

 How would you handle this, it drains very slowly, 1 gallon takes a few minutes to go down