With my $1,100 monthly revenue, my 700 FICO, and my (likely) $55,000 in equity - what kind of options would I have to refi.?  

There are two options I have offered and I want to get a check on here if I am off base with my offer or if I need to push harder.

The only other option I see is a short sale, if you don't need to purchase for a few years and don't mind a temporary credit hit to save the $60k.  

Otherwise, I recommend option two, using a personal loan.

What other options would be good?  

If that's what you're really after I would start with the basics of what kind of bank loans either residential or commercial are available to you - not saying this is the best option, but it's a good place to start.

However, after receiving the survey results, I discovered that the house is located less than 1 foot over the sublot line (see attached image).Here are the options I’m considering:Rent the current house for market value (~$1,500–1,600/month) and convert the detached garage into an ADU to rent for ~$1,000/month.Relocate the house to split the lot, then sell the newly created lot (~$100,000) while renting out the existing house.Relocate the house to split the lot and build a new home on the second lot.Demolish the current house and garage, split the lot, and build two new homes.At this time, I am uncertain about the cost of relocating the house.Questions for the community:Has anyone faced a similar situation?

I suppose something more turn-key could be a good option, but haven't come across many viable options there yet.Anyways, we still have a lot more to learn and still need to familiarize ourselves with the area/market, but just wanted to pop in to say hi! 

Question 2: if homes upside down on mortgage what are my options?

There are a lot of options out there.Some of the most useful items BiggerPockets members have identified are features that save time so they can spend time working on their next property.