Disabled employee can’t make enough client visits–how do we accommodate?

Q: “We are a not-for-profit company. We have an employee who was moved to part-time status last year because of grant funding cuts. We have now received all the funding back, so we can return her to full-time status (37.5 hrs. per week). She has a disability and has restrictions on the amount of hours she can work per week, which is 32. This makes it difficult to visit all her clients each week, and she also admits it would be difficult. Do we have any recourse? We do not have the staffing or budget to move clients from this employee to another to fit the 32-hour workweek, or to put her on an LOA and still pay benefits.” – Ann, Illinois