I think in many jurisdictions a permit may be required to remediate mold.

A larger new construction buy & hold rental project we are specing out may go all electric to reduce the lead time for having the gas company setup the lines, permitting etc. and this would make adopting the renewable energy credit program more feasible.Many of these projects offer state, local and federal tax credits and we have to get smarter about those programs.

It is quite possible that with 3-4 rooms, your house is not classified as a rooming house - check your community's bylaws with respect to the number of unrelated adults living in a residence.If you are planning to convert additional houses into rooming houses, verify that a rooming/boarding house is permitted under present zoning before you acquire the property.  

And someone has to be putting your hard cost and soft cost budgets together to make sure the deal actually works financially, concurrently with getting your land disturbance and building permits approved.I'd say on the average new apartment deal I've been involved with the developer has invested about $800K over a 9-12 month timeframe from signing the contract to buy the property to closing on the loan.I'm not familiar with the Orlando market, but metro Atlanta is going crazy with apartments right now.  

I have to hire out the work on my rental properties that require a permit. 

Then find out the costs of clearing the land (tear-down), permits, modular or mobile home construction and ARV for each scenario?

Some reasons are the crime, high property taxes, high water bills, city government making it hard for investors with fines and dumb permits for the simplest things.

@Nav Chandhoke yep - you should take control and get rid of the roaches first, then work back charge (if lease permits).

This doesn't seem like an expensive job from a parts and labor standpoint, but I know permitting can get tracks.

What happens when local, state, and federal governments and their agencies are no longer able to bring in enormous tax revenue via settlement cost, appraisals, rehabs, construction permits.