A couple of points I'd like to throw into this thread:
1) Many states have statutes that bar Landlords from discriminating against prospective tenants, based on their source of income. This means that a potential tenant with a Section 8 voucher could be considered a protected class - period.
2) A potential tenant who requires you to complete/submit paperwork about your property, remove your property from the market for 2-4 weeks while an inspection is scheduled, take the time to travel to your property to meet with the Sec. 8 inspector, followed by additional time spent waiting around while he/she conducts their inspection, all without any from of compensation... is not a protected class - period.
In my listings, I state that my properties are "not set up to work with the Housing Voucher program". This does not mean I'm discriminating against the Section 8 tenant - rather I'm saying that I won't jump through the hoops required by the Section 8 program to place a vouchered tenant in my home at my own expense. Accepting a tenant backed by a Section 8 voucher, and agreeing to spend time/effort above & beyond what would be required by any conventional market tenant are 2 mutually exclusive things.
I'd be happy to accept a Section 8 tenant, so long as the following was understood in advance:
1) The Housing Authority (not me) must fill out all paperwork regarding my home, and send to me for easy electronic signature.
2) I must be compensated for the time my home is removed from the market, while awaiting the Federal Inspection - assuming I find a qualified conventional tenant willing to rent during the inspection waiting-period (a per diem for potential rent-loss).
3) The inspection must be scheduled with consideration for my convenience, and I must be compensated for the time taken to travel to the property and meet with the Inspector.
In other words, my total "charge" as a PM to process all paperwork & handle the Section 8 scheduling/inspection would be a reasonable $100-$150. I'd have to pass that expense on to someone, and since I won't pass it on to my Clients - the Housing Authority or tenant would get the bill. Then there's the likelihood that I find another qualified tenant while waiting for the paperwork to be processed & the home to be inspected - this could tack on another $200-$500 to the total cost, as my Client could be receiving that rent from someone else while waiting on the local Housing Authority to conduct inspections.
Ultimately, the Housing Authority would refuse to pay the bill for my services - or compensate my Client a per diem for lost rent. The idea that a tenant who's on Section 8 assistance pays that bill?..... highly unlikely. In either case, there's no requirement for me to spend my own time/money to accommodate anything above what I would normally do for a conventional market tenant - and there's no requirement to remove the property from the market without compensation (assuming I find another qualified renter).
Jeez... this got long. Regardless, hope this helps someone understand that no: you cannot discriminate against Section 8-backed tenants in many States. That said, yes: you can demand additional compensation for the additional time/effort it takes to accommodate a Section 8-backed tenant. If they or the Housing Authority refuse to provide reasonable compensation - you may choose not to accommodate them.
Cheers!