Alice is an asylum seeker with her EAD pending renewal with 179 days of unauthorized work under her belt total. Bob is a recipient of the labor or service of Alice.

Is she entitled to engage in labor or provide a service (for e.g. cleaning, shopping for groceries, transporting with a vehicle from A to B etc.) based on a contract strictly for no remuneration of any kind may be provided and will not be accepted with entire agreement and written-amendments-only clauses, and allow — but not stipulate as a prerequisite for the service or labor — labor or service recipients to leave a tip?

Is such a contract achievable that would withstand inquiries for removal or deportation on the grounds of violations of employment and similar laws or is the law established in a way that under no circumstances could any such or similar contract allow effectively for free no-strings-attached service and/or labor provision of Alice and also to accept any non-obligated tips from Bob?

Does it make a difference if Alice regularly engages in such labor or provision of services although predominantly to a different person each time?

If not, what laws would prevent acceptance of such tips? (For e.g. could this be considered panhandling, soliciting etc.) Presume all ancillary laws are followed and complied with (for e.g. paying taxes since Alice had been already provided a social security number etc.)

Alice, if wasn’t hypothetical, would greatly appreciate it!