My advice on sub to is as follows1- COMPLETELY understand the process, implications, liabilities, and possible outcomes before engaging or attempting to engage in a sub to transaction2- Complete disclosure going so far as making sure the other part understands the transaction and possible consequences3- Utilization of an attorney experienced in subject to transactions for setup in such a way that provides some protections in case of default or in case the note is called4- Have a backup plan in case the note is called5 - only use for property that has a TRUE positive cash flow unless the buyer has substantial reserves I myself have purchased 8 properties subject to, but 5 of those were commercial properties which often have notes where a subject to is allowable.  

Are there any strategies here to utilize bank funds for our project?

Typically, we conduct background checks on only the individuals who are responsible for the lease (primary resident) and/or cosigners.

I am not typically litigious, but this situation is unacceptable.

But, we recognize that the experience you were having, multiple months without revenue and no clear time frame to be fixed, is not a typical experience with our company, and when and where we can help, we will.Our team didn't follow up as we said we would, so you asked us for updates instead of how we plan to operate, which is updating you proactively. 

Ensure you collect a proper security deposit (typically one month's rent in Florida) to cover potential damages.Your plan to increase rent next year makes sense given rising costs (taxes, insurance, and maintenance).

However, required downpayments were typically 40-50%, and would be difficult without a residency visa.

I used my house hacking here in Los Angeles and utilized the equity to buy out of state.

Type of construction materials for the build(block/metal frame/wood frame), separate utilities, finishes, tech, cleaning crews, any tips and tricks would be HUGE! 

Typically it’s a secondary use meaning the land must have a primary use (like a home on it).