If this is going to be a investment home you will have a hard time getting a cash out refinance with most lenders as an invesment mobile home.

If there's enough duplexes that it's likely you find one you like in a reasonable amount of time (less than a year), then start looking at them in your preferred area.

What does the process look like from start to finish? 

contingencies are awesome to let you string out time if you need it.  

Ineffective or Absent Conflict Resolution ProcessEvery successful group of people needs an effective conflict resolution process characterized by:simplicity to understand and remember;quickness to start and complete;a clear vocabulary.My company, Livingsmith uses and recommends the 5-on-5 Process for conflict resolution in co-living homes.2.

Most likely the new lender is going throught the foreclosure process and typically will end up taking the property back.The original posters chances of getting this property back now is slim to none as it will be sold at market value.  

Have a criteria going forward with this process. 

I stumbled upon Deal Machine as a tool to aid in the process.

You'll typically need to set up your account and get familiar with the process of working with the local housing authority.

I'm actively seeking mentorship from someone with experience in similar markets who can shed more light on this process.