Ok, I can see I am in a certain category which may be a nuisance.  

The liens will not be released by the city until all nuisance/unsafe-home violations are brought up to code (all exterior: roof, siding, windows, etc).

Some people look at it as a nuisance, but I love it.  

Is is livable or a constant nuisance?

I don't want to be a nuisance I just would like to have a realtor to go to that works with what I'm trying to do and not the other realtors that don't.

The court also may order the landlord to abate (stop or eliminate) a nuisance and to repair any substandard condition which significantly affects the health and safety of the tenant.121 For example, a court could order a landlord to repair a leaky roof, and could retain jurisdiction over the case until the roof is fixed.In order for a tenant to win such a lawsuit against the landlord, all of the following conditions must be met:122• The rental unit must have serious habitability defects — that is, it must substantially lack any of the minimum requirements for habitability listed in the eight categories on page 24.• A housing inspector must inspect the premises, and must notify the landlord or the landlord’s agent, in writing, of the landlord’s obligation to repair the substandard conditions.• The substandard conditions must continue to exist for more than 60 days after the housing inspector issued the written notice, and the landlord must not have “good cause” for failing to make the repairs.• The substandard conditions were not caused by the tenant or the tenant’s family, guests, or pets.In addition to recovering money damages, the party who wins the lawsuit is entitled to recover his or her costs of bringing the suit (for example, court filing fees), plus reasonable attorney’s fees as awarded by the court.123Before filing this kind of lawsuit, the tenant should take all of these basic steps:• The tenant should notify the landlord in writing about the conditions that require repair.

Though screens can tear easily under the weight of a child, every little bit helps.Might also be for health reasons as well to keep flying insects out which might carry disease or might be a nuisance or an annoyance.My $0.02...

well you can't force someone to fix their property unless it's considered a nuisance in city ordinance. 

and I wonder how up front he will be if I were to ask for a reference.Likely his current landlord would love to pass this nuisance off to you.

They suggested that the HOA handle it.The CC&R has a quiet enjoyment/nuisance provision.