The best advice is from a Attorney.
2nd best advice is from an Licensed Agent in your area keeping current with education. Or one who is familiar and has experience with program.
You can also refer to the HUD.gov website.
Your county dictates the atmosphere for section 8 which is actually called Housing Choice Voucher. For instance in my state of Illinois in Cook County you can not discriminate based on the program but you can deny due to credit. Source of income is a protected class.
About the Housing program,anyone can accept it. You dont have to already participate.
Landlord would treat applicant fairly like anyone else. Sign application,do checks...e.t.c,It is merely a form of payment. Matter of fact better because the government deposits on time. Her source of income cannot be discriminated against.
She pays deposit like anyone else.There is a wait time for approval ( moving papers)but renting to her they will give back pay.
What makes the prospective tenant make this into a big deal is the common sentiment people have against Voucher holders. They get stereotyped and discriminated against quite too often. This is why the law protects the rights of Voucher holders.
It is hard for someone who has a voucher and they only have so much time to secure a lease before it is revoked.
It's a very unsettling experience for someone who knows if they don't use the voucher they could end up homeless.I am sure that is her biggest fear.
Between her and your dad communication was off key there. It is a misunderstanding he should say he wasn't familiar with section 8 and she could of explained or directed him to someone who could. It is his ultimate decision on whether he wants to rent to the tenant.
I am sure that HUD would point you in the right direction.
The question is would your Dad consider another tenant if they are in the program?