I'd take a look at the lease, most standard leases have section allowing owners to evict or give notice if certain situations are met such as being a nuisance or repeated police calls etc, but generally taking a deep dive into the lease is a good idea, but also filing a complaint with either the city code department or potentially the section 8 office could be helpful also.

If you think for a moment you can get away with it and post for rent ads and not have at least one neighbor report you for code enforcement you're delusional. 

A few quick tips:Markets: Check Redfin, Zillow, NeighborhoodScout, and BP’s Market Analysis tools for growth trends like rent growth, job numbers, and home price appreciation.Tax strategies: Look into becoming a Real Estate Professional for tax purposes or using tools like cost segregation, bonus depreciation, and 1031 exchanges to offset your W-2 income.Financing with student debt: Many banks offer physician loans with special terms and don’t weigh your full student debt into DTI.

(So far, I have the tax-assessed value, zoning code, and lot size.)Are there any red flags I should watch for when it comes to selling infill lots in urban/suburban areas like Portsmouth?

The whole project was quoted at 130k, with the major part to replace electric and wiring, install a AC in machine room. we just got to know from inspector the elevator failed the fire inspection because fire alarm control panel fail to comply with the current code.

It's heavily dependent on what the tax code allows and who is interpreting the tax code.

If so, I’d love to hear about your experience and any recommendations you might have.If anyone else has suggestions or knows a realtor who specializes in working with investors, I’d greatly appreciate your insights!

There, you'll find detailed information on investing, both in general and specifically in Las Vegas.Before I continue, note that unless otherwise stated, the charts only include properties that match the following profile.Type: Single-familyConfiguration: 1,000 SF to 3,000 SF, 2+ bedrooms, 2+ baths, 2+ garages, minimum lot size is 3,000 SF.Price range: $320,000 to $475,000Location: All zip codes marked in green below have one or more of our client’s investment properties.Overall market inventory:The chart below, from the MLS, includes ALL property types and price ranges.

Did you do any of the special financing like low rate or 0% down ones I hear about on the show?

Was is part of his tasks to look for the vent and mention that, or it is fall into the building codes?