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 worked in banking for years and was a Private Banker with securities licenses for a time.

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

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.

We (I work at Azibo, just a disclaimer) have quite robust accounting capabilities and time saving features like Schedule E generation and automated  transaction tagging rules.

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?

The security deposit was $1,200, but here in Florida, attorney's fees and costs are recoverable to the prevailing party in cases concerning security deposits.

He sent me a contract which if I sign will pay him a fee of 3% of the money secured. 

I’m a new landlord in CA and missed the 21 day window to return the security deposit (I thought I had 30 days).