If the HA stayed out of my hair and simply paid some portion of the rent, I'd be fine with it.

We all know there is a lot to know in real estate and it can get very overwhelming, but the key for you is to get laser like focus on one thing.

Once we offer to rent the unit to the winning candidate and they accept our offer, we notify the unsuccessful applicants and return their application fees.Hello Marcia, Hope Im not splitting hairs here but could you please expand on the last sentence of "we notify the unsuccessful applicants and return their application fees." 

I wanted to let them know I appreciated things like tightening the screws on a loose hinge or cleaning out a hair clog from the bathtub. 

Our landlord, on the other hand, never hears from us, we pay rent on time, and we keep her place clean and maintained nicely -- it actually looks way better now than it did when we moved in, because we've repaired crumbly wall sections, spackled holes/dents, touched up scratched doors and floorboards, de-stained the linoleum, replaced cracked lightswitch plates, power-washed the patio, washed the blinds (the landlord didn't, there was cat hair embedded in them from a previous tenant, which by the way the landlord wasn't aware of anyone having a cat, LOL), etc.  

Any market difference is going to be splitting hairs when it comes to the bottom line of your portfolio.

He has red hair but I can't think of his name at the moment. 

My mom a hair salon with 3 apartments over them my father a landscaping business and also has 3 units over his garage where he keeps his equipment.

you can have a decent website for $2000 or less these days depending on the complexity of the website you have in mind, so not necessary splitting hairs over this. 

I will add, stay laser focused.