Roofs do not require any permits unless you 'alter the diaphragm' meaning replace sheathing.

My wife came to this country and never even bothered to translate and register her diploma and four-year-degree.

“I won’t buy anything that won’t pay for itself in 2 years.....”That’s the kind of guy I want to hear from, his experience......Some of this is evidently lost in translation, but some of this is simply vapid.OK  Stuart  Here is my qualifications on these homes1. one of the first HML to fund turnkey in Detroit circa 2001  ended in 2008 having done a little over 2k of these in all the major turn key markets.. so thats from the front end.2. in 2012 when lending was dead..

Translation: I am selling the house to a co worker, and you will get the tax lien paid.

Sure the raw number of 150/month may be the same, but you have to spend an extra 50k to achieve the same raw cash flow in the good school district which alters your ratios.So in the end the C class asset will cashflow better, and the A class will probably appreciate better. 

Alterations in buildings built before 1978 are generally (if not always) regulated by the EPA:http://www2.epa.gov/lead/renovation-repair-and-pai...If you simply want to know whether the building has lead paint in it you can purchase lead paint test kits at Lowes and Home Depot.You'll also have state specific regulations governing remodeling/renovating activities and licensure.

Don't be angry if you need to repeat yourself or maybe use a translator to get your point across.