The other unit is an efficiency suite which i would occupy for a while because of the FHA loan.

If so, at 15% APR, your loan is usurious.The penalties for making a usurious loan can range from jail time for loan sharking (extremely unlikely, unless you're involved in organized crime), to forfeiture to the borrower of all interest owed, to payment to the borrower of triple the amount of interest collected the year before the borrowed brings suit.

The bank is now foreclosing on the property, with me being named in the suit. 

Wanted to see if anyone could give me some lender/private money recommendations for build to suit ground up development for a couple national fast food/QSR retailers in the Seattle metro area.

I am aware that the interest is no longer deductible but not sure what other options would be best suited for my financial situation.Thank you for any advice and I look forward to participating the forums.

They're pretty available, can probably pick a blank up from a big apartment complex and customize to suit your needs. 

Will you need to change the business structure to suit your needs?  

I am in need of a new suit or two.

I am considering building it out into multiple executive suites.

We had to move out of Southern California due to a job relocation and built our place in 2016 in Los Angeles, it's really nice in gated community with a pool, 5 bedroom 4 bath with a main level suite and full bath (a second master, an in-law suite, a home office) appx 2600 square feet.