I believe we closed sooner than the traditional 6 months. 

Also, if we do get the DSCR loan on the land and modular home, rent it for a couple years could we then convert it or refinance it to a traditional mortgage.

Quoting from https://www.nbcnews.com/news/u...With Rhino, the platform replaces the traditional security deposit to a landlord and instead provides renters with a monthly low-rate insurance policy, simultaneously providing protection to property owners.

You can however, improve results by focusing your message on the sellerbut not saying that you know their circumstanceFocusing on seller can be as easy as listing the reasons why selling a home to you is easier than going through the traditional realtor route.It can be creepy and piss people off if you start in with "I can solve your financial problems by buying your house".

When you reach the refinance step of the method, do you refinance with a traditional mortgage or another DSCR loan?  

And so here is another option, although maybe not traditional, what about a lease option with a non refundable $170,000 move in fee and a option to buy at $105,000.

Just be aware of the tax treatment of short-term rentals (average rental period of 7 days or less) vs "traditional" rentals, especially if substantial services are involved. 

Traditionally in my experience they have been 15-20% over market value, hence the reason one would use it for marketing.Untill you have qualified feet on the ground you're pi**ing in the wind.

Since cash deposits aren't possible, we do have a tradition bank account with a big national bank in order to facilitate online transfers.

Couple domestic, one foreign.Particularly in the traditional real estate investing community, there are many different opinions on the value of investment products (those traded on stock exchanges).