I had an electrician run wires in an attic, telling me up front that the house won't be up to codes, he's only doing the one or two things I asked.

A shower is generally acceptable as long as it meets building code requirements for plumbing and drainage.

I feel like it's a space where great operators can really clean up, since the bar is set really low, in my experience at least.

If before getting a permit you have to dance around for Code Dept officials/ city gov and crime is thru the roof, investments will definitely be low whether real estate or other, but it should be benefiting the city officials to keep things that way.

In my 30 years doing this I’ve found that as long as you address each issue that comes up properly and do the repair needed to bring that part of the building up to current code then you will be fine.

It's important to understand the zoning/code requirements and obtain all necessary permitting if you intend on operating your real estate as STR anywhere in the country.

You can put out a bid and request to see who's available in the zip code you input.Hope this helps! 

Each housing authority (HA) provides a voucher amount determined by bedroom and some further define it by zip code or city within their covered area.

@Scott Trench   ​    I saw that as well online - 90 day moratorium - basicaly no unsolicitied offers to homeowners impacted in specific zip codes.

These are professionals with additional training and a stricter code of ethics.