Nor have I been able to find an online application that I can fill out. 

Management & Leasing FeesManagement Fee: 10% of the monthly rent = $180/monthLeasing Fee (Tenant Placement): 60% of one month’s rent = $1,080 (one-time)Lease Renewal Fee: $250 per lease renewalUpfront & Annual FeesOnboarding Fee: $350 (one-time for setting up the property)Annual Administrative Fee: $45 per year (for statements and 1099s)Reserve Fund Requirement: $300 (held for maintenance and expenses)Maintenance & RepairsOrdinary Maintenance: Any repair costs exceeding $300 require owner approval.Emergency Repairs: Up to $300 without prior approval; HVAC, plumbing, and electrical repairs can go up to $500 without approval.Home Warranty Claim Handling: $40 per claim (if applicable).Multiple Quotes Request Fee: $100 per request if you require multiple vendor quotes.HVAC Filter Supply Fee: $195 per year per HVAC unit.Repairs & Improvements: 10% markup over vendor invoice cost.Additional FeesInterest on Unpaid Sums: 10% late fee with a $39 minimum per month.Paper Check Administrative Fee: $20 per check if not using direct deposit.Insurance Documentation Penalty: $40 per month if proof of insurance is not provided.Eviction Protection Program (Optional): $15/monthProperty Damage Protection Program (Optional): $25/monthTermination FeesEarly Termination Fee: Equal to the management fees for the remaining lease term.Vacant Property Termination Fee: $500 if no tenant is in place.Transfer to Another Manager: $500 file transfer fee.

Loan Costs, Deposits, and Escrows: Origination fees, application fees, third party reports, legal, insurance review, title & escrow, rate caps (floating rate loans), due diligence deposit, rate lock deposit, standard escrows, etc.6.

In addition, a strong property management company will tackle all aspects of marketing, application, ensuring resident satisfaction, fair housing, handling late payment/evictions, renewals, etc. 

DC Housing told me to look up our address on affordablehousing.com, and that is the max we can rent the property, it shows $4,270, and I would like to rent it at $4500.I posted the unit on Zillow at $4500 to gauge the response, and I got 15+ applicants within a few days.

Your biggest challanges:1) Figuring out how to advertise on Zillow2) Handling all the calls3) Scheduling showings - and getting stood up4) Finding a rental application to use - you can use Zillow's or easily Google for one.5) Figuring out how to screen applicants ***** This is IMPORTANT!

Understanding this information can be advantageous, whether or not a property manager is involved.Being well-informed about the eligibility criteria, application process, and benefits of the Section 8 program can greatly assist you in navigating the housing landscape.

DO NOT PAY AN APPLICATION FEE.

So accepting and approving multiple applicants is the norm?

In just the past week, I've had to deny six applications from agent-led showings because the agents didn’t conduct proper due diligence upfront.