Now the S-corp and LLC are good routes to go with for protection but, with a S-corp can be difficult to form because I taken a accounting class recently and with s-corp are more regulated with striker laws by the IRS. which personal my final verdict goes to LLC because you are a single person in this business if I'm not mistaken which will get the job done with this option.

Its zoned b2 commercial (which I think means residential commercial, but do not fully know)  and will require a full remodel of possible plumbing, electrical, a few walls moved. 

.- replace front and back doors and door frame (2)- plumbing/wiring for Washer/Dryer hookups- get kitchen outlets up to code so appliances work safely- paint and add knobs to kitchen cabinets - kitchen sink fix (replace faucet)- insulation of windows - plastic lining- make sure smoke detectors are working/to code- get garage door working - needs to be hooked back up - exterior siding cleaning OR paintingLet me know if you think this sounds reasonable or not...

Are owner-occupied buildings regulated elsewhere? 

. - Ended up getting it months and months later however, I got word from one of the contractor's workers that he was totally putting off my job and most likely delaying the permit process on his own.A project were doing for a co-op in Journal Square JC - we got permits in 3 weeks,however, that is just for construction versus electrical, plumbing, mechanical.I would expect 2-4 weeks in a normal town but JC I heard can be longer depending on what your requesting.Also, in some towns if you tell them you're flipping versus applying as a homeowner it can take longer. - Also, if you're flipping some towns will make you get an architect to do drawings if you're doing a half bath or other things.

If my property has a plumbing issue, I will call my plumber and he will fix it.

In one of the neighborhoods close to where I work (outside of Baltimore) there looks like there are a bunch of triplexes that have some potential as section 8 rentals, granted they would probably need some rehab to meet the regulations. 

Make sure the plumbing, roof, electrical & HVAC are sound and you should be fine.  

Depending how strict the regulations are it may be doable with just an architect.

Avg rent is $900 or lower, deal prices ranges from $39-$79Krehab around $50-$100K- ELECTIC,ROOF, PLUMBING would need re done- Knob-Tube Stuff.Comps $120-$140 if your lucky cause no one would want to OWN here do to the neighborhood.