The Interest rate hike seems like its going to outweigh the PMI knock off.

cost of loan on primary home would outweigh potential income on investment property over 30 year life of loan. trying to figure out way that makes sense!

One little thing can turn off the finicky buyer and out weigh all the good features.David Krulac

The negatives could outweigh the positives in some cases.

I know there is always the possibility of having to pull that out earlier if something happens with the unit or the lease agreement, and with that would come penalties in the CD route, but the possibility of penalties vs the potential gains may outweigh the risk, especially if you keep a certain percentage as a back up and not place all security deposits into a CD account. 

Does your cost to sue outweigh what you may get in return?

I thought that because there are soooo many RE agents out there today, that the advantages would outweigh the disadvantages.  

For me the power to quickly say "get the F out", far outweighs my concerns that a tenant might leave for "greener pastures"

It's likely that the cost may outweigh the benefits with respect to a cost segregation on a property as small as 4-units but maybe not - it's certainly still an option.To answer your question, yes, you can claim depreciation on the 3 rental units even if you used an FHA loan to purchase the 4-plex.That's the beauty of house hacking and depreciation :)

The door... not at all.Generally speaking, a deck is added for enjoyment and not value as the cost to build (especially if opening up a wall) outweighs the added value.