I found this SS blog.
Working after getting SS benefits. Your SS can increase. See 4th paragraph,
We check additional earnings each year you work while receiving Social Security. If an increase is due, we send a notice and pay a one-time check for the increase and your continuing payment will be higher.
https://blog.ssa.gov/three-common-ways-your-social-security-payment-can-grow-after-retirement
What do you mean employ her with no benefits? She is not getting any employer benefits now as a 1099 independent contractor.
