You should use a state-specific lease that is clear regarding the start and end dates, the monthly rent, the fees that will be charged (ex. pets) and those that may be charged (ex late fee), the amount of the security deposit, and a clear list of rules associated with the property (no smoking inside is a big one as are rules related to parking).

Nope, too much of a security issue! 

This is because Mortgage backed securities are in direct competition with investors looking for "safer" investments backed by the full faith of the United States Government. 

After  exhausting security deposit is sometimes less expensive  to give them a stipend to leave.

I explained to the seller that my offer contained a substitution of collateral clauses and I would be exchanging the note they held on the subject home with a note of similar principal and interest secured by a different property of greater appraised value.

If the property is paid in cash and later a mortgage is secured does it impact the UBIT question above ?    

I like propstream.com mosty for deep and wide (best i;ve found) data/lists and deep dive into individual addresses. 

It sounds like a smart way to build equity and stay secure financially.

I’d appreciate some feedback on my current approach and advice if any.Here’s what I’ve done so far:Pre-Approval: I’ve secured a pre-approval amount and interest rate from an online mortgage lender.Property Analysis: I’m using the mortgage and STR calculators from BiggerPockets to assess the financials for potential properties.Neighborhood Research: I’ve been exploring different neighborhoods using Niche to get insights into schools, safety, and livability.AirDNA: I’m considering subscribing to AirDNA for data on occupancy rates and rental income estimates.Questions:Is AirDNA worth the investment for STR data?

I would want my money to be secured by a promissory note and mortgage on the property in question, and thanks to the advice from some on here, if the property in question isn't enough to cover it, I would need to attach a lien to other property to ensure I can get my money back.