I would be more concerned with where the title to mobile home was - was it retire and put on the property or is it still personal propertyThere is nothing you can do to make it compliant, if the loan has been current for 12 months then you have ability to repay because they have consistent pay history

The person on title/name of the person on the mortgage can typically win if it is not done right. 

These sellers typically want a fast sale to move on with their lives and avoid ongoing conflicts.Relocating SellersPeople who need to relocate for a new job, military deployment, or other personal reasons often seek a quick sale to avoid the burden of managing a long-distance property.Inherited PropertiesHeirs who inherit a property they don't want to maintain or manage may be eager to sell quickly.

I personally believe that landlords can be great change agents in a community.  

Quote from @Chris Seveney: Personally if you have one mortgage already that is negative cashflow I would be hesitant to buy rright now, especially in canada where from reports their housing situation for pricing is far worse than the US on affordability and just like US, people think prices can only go in one direction but reality is they are moving in the opposite direction."

House hacking is how I personally got started with real estate investing and how I help the majority of my clients get their foot in the door.

Then go and get a good umbrella policy personally. 

@Tracy ScottScour the HOA docs for wording involving occupancy such as, "not more than three (3) persons not related by blood or marriage living and cooking together as a single housekeeping unit."

Really making sure that you stay on top of that person (contractor, you, architect) on the ball by following up with the city to get that permits done in a timely fashion. 

(I've written about the topic on the forums many times).I also have personal experience rehabbing properties with structural issues (unfortunately).I've bought and rehabbed properties in almost every condition imaginable, but I've never knowingly bought a property with significant structural issues--that's my one deal-breaker.