The IRS has just issued updated guidance on OZ's including the draft self-certification form (Form 8996).

It's my understanding that if your property is pre-1978 and you're disturbing x sq ft of area (think it's 6 for interior or 20 for exterior), then you must be lead certified or use lead certified contractors if you're reselling or renting, may be exempt for owner-occupied, unless your state offers another option, like a lead-free certificate after professional testing. 

Look for licenses, insurance certificates etc. 

Property needs a ton of work and also lacks a certificate of occupancy.

certified appraisal) $30 credit report $15 flood certification $400 appraiser's fee $400 doc prep Approximately $450 for a full appraisal from our pool of third party certified appraisers.

You could try to sell the house as is and make certificates of occupancy responsibility of buyer. 

Your offer to purchase should include a requirement that they provide all documentation and agree to sign an estoppel certificate (also called estoppel form or agreement).

Today - the new OTC list for 2018 Certificates came out today - We (Another Investor and myself) are finding lots of certificates on the list that the property did pay 2017 taxes and incorrect names on the list, that happened before the sale.Use Caution. if I get a moment I'll look more into this though.Happy Investing!

An estoppel certificate for each unit can be helpful during due diligence to avoid owner/tenant discrepancies.

"Current Value of the Tax Certificate is $ 131.82"..."