If they are nice enough for AirBnB, then you are probably ok there as well since the stays will be short. 

Renovation work throughout both apartments, gutted and refinished the basement as well as extensive work in the private backyard.

The property will be worth 220 when complete. 

I'd say it would be important to see how much more you would make renting MTR.

Average rents for a well maintained 2 bedroom apartment are easily $1000.  

I've never used his service, but it may be something you want to consider.

Owner occuppied loans regualted in every state .. must have state license and NMLS registration.NON owner occ loans on 1 to 4 units are regulated same way in about 15 statesin the other states they are unregulated.Keep in mind though investor loans do not follow the same rules as owner occ and rates can change charges can change closing dates can be blown through etc

It could be 4 months it could be 2 years but rates will come down. 

You can refinance into a FHA 203k or like @Jason Wray mentioned you could even use a Fannie May homestyle renovation loan as well!  

Upon inspection the appraiser will see the crawl space and see it was a mobile home plus a HUD tag and public record.One of the requirements in mobile home financing is the property "Must" be on a concrete permanent foundation(in order to be real property) on top of that it requires concrete pillars, skirting and the "Well and Septic" dug and placed within legal distance from subject property.