They have some sort of mechanism like depreciation called IDC which can mean writing off 85-100% of your investment in the first year.

Nfip ONLY covers electric panel, water heater, heater/AC, fuel tanks (if used for heat), basically only mechanicals used to service the upstairs and that's it.

If you don't change the filter out frequently enough, you will notice that not enough air is getting through the ducts and out the system to heat or cool your house effectively (bills go up).If you run the furnace without the filter, dust and particles build up on the blower motor fan mechanism, making it heavier.

A multi page report on all aspects of the house should be included and cover everything from roof to basement, siding to mechanicals, flooring to fixtures.  

The mechanics of a wholesale deal seem to be the same whether you're in Canada or the U.S. but you only here of U.S. success stories.  

My day job is in engineering so I tend to look at "code" as minimum standards and most times not necessarily best practices.As a rule, I don't allow any mechanical joints behind walls or underground. 

It's based on the estimated efficiency of the project, so there is definitely a loading order (insulate the shell first, then look at your mechanical systems)  The difficulty is that there is almost always a waiting list because the programs are oversubscribed.  

I am 28 years old, a father, husband, mechanic, welder, and a farmer.

Heads are cheap, but are there any regulations on how they need to be installed, how many heads do I need for 100 sq ft mechanical room, any specific type, connecting with copper and not pex, etc.?

I have a few off the top of my headNon-conforming zoned properties, way too hard to get around these (sometimes)High crime rates, D class neighborhoods - beware of bad neighbors tooLong list of building inspector code violations being transferred at closingToo many liens on the property (mechanics, tax, credit - you find these in the title search)Clouds on title (relatives in other states that have different plans for the property)Too much "spaghetti" on the table (hair on the deal, I am Italian and like food references)Happy to share my "Due Diligence Checklist" from our BiggerPockets Blog.