Tricky Situation Need Insight

[Michael Junior]

Buying a property direct from the seller. Currently she has two of her family members occupying the home, both with mental disabilities. 

So we came to terms on numbers and pricing. Originally the plan was for us to find her family members a rental for them to move into, she was going to open a special needs trust and release funds monthly from that trust to pay for her families living expenses. 

Problem we ran into is: If she supplements her families living expenses, the state will withdraw any benefits they are currently receiving. 

So basically we need to figure out a way for her to take a % of the proceeds, keep it protected and be able to have an allotted amount dispersed out to them without it interfering with their benefits. If anyone has ran into a similar situation or has any insight please let me know!