I work full time at a decent job, but have quickly learned that I needed to make some changes in my families life by securing our financial future. 

Running the numbers on paper is one thing, but actually securing bookings at your target rate is another.Sounds like you’ve got a good handle on your market and what your guests are looking for, which is key.

but i also 2nd @Jay Hurst's sentiments - get a 2nd or even 3rd opinion on DTI/ full doc. i personally love files that are puzzles, i get some weird satisfaction out of figuring out how to make it work on full-doc, especially when my client has been told "no" before. if it doesn't work now, a good loan professional will help you create a path forward.

It also confirms the amount of security deposit and the lease ending date.

I’m filing a class action lawsuit.

I just had tenants move out of my investment property (duplex) without paying for the last month's rent, and the damage they inflicted onto the property exceeds their security deposit amount.

However, if I don’t secure an eviction order within the next two months, I’ll send him your message.

The solution was to pre-lease the unit your living in collect security deposit in first months rent.

What is the security on the above?

If I were in your and/or your mother-in-laws shoes, I would go to a local bank and use the free and clear house to secure a $150K+ line of credit.