Obligate

[Couch Potatoe]

To bring or place under obligation, moral or legal; to
hold by a constraining motive.

[Lanell]

Require or compel (someone) to undertake a legal or moral duty.

[Tracie Lynn]

to make someone feel morally or legally forced to do something:

[Jason Yan]

Bind or compel (someone), especially legally or morally.