THis has been asked and answered in other threads, but my understanding is:
1. Girl operating Incall in her apartment is NOT legal.
2. Visiting an incall is not a "reasonable excuse" to leave your residence.
3. Going to a hotel for an incall/outcall is not a reasonable excuse. Not many hotels open at the moment.
4. Girl visiting your residence for an outcall may be allowed, but social distancing rules would still apply.
You would have to weigh up the risk of detection in each case.