Unfortunately, you have to call these OTA's many times over until you get a customer service rep who sympathizes, is knowledgeable about the platform rules and is willing to actually help you.If you don't want to ride it out, i think you have options.

I've met with a few brokers and most are hesitant to lease up small space and curious if others have been successful and what product they are using to source / find demand for mirco units.

FF is just one source and good for establishing a baseline of sorts, but I agree with you that it's going to be beneficial to market on other sites, including the OTAs.

Hi all, Do you know any free or low cost app for property management that has a daily late fee charge options?

VA assumable loans are another option you still need to cover the difference and they will have fewer restrictions.

I considered selling but it is my last option.

What are my options here?

What is the best option/mortgage for me? 

It may be the best option but there are quite a few other strategies as well that could help lower your tax burden when you move on from this current property.

Banks requires (2) months copies of your checking or account for the down payment.If you get the cash into the account 3 months prior it will "not" show as a large deposit that you have to source and show it came from a personal loan which then causes no issues in underwriting.