I did trying to do one subject to loan an my real estate investor didn't know much about it. 

Very few allow any subordinate financing below their note but I do have ONE that allows 90% CLTV (they loan 75% and allow you to secure a 15% seller carryback as long as you come in with 10%). 

Sellers may struggle to mentally shift from "owner" to "tenant," which can create challenges with boundaries and property care.Security Deposit:If you’re doing a temporary leaseback, be sure to collect a substantial security deposit to cover potential damages and ensure they vacate on time.

2.Are there strategies to reduce the required down payment or secure better mortgage terms?

Investment Info:

Large multi-family (5+ units) buy & hold investment in West Allis.

Purchase price: $294,500

Cash invested: $144,000

This was my first commercial MF and off market deal. My agent ...

I would say maybe look into a 203k HOA loan great loans for people our age. you would be able to do a value add and not pay your mortgage until the updates are done up to 1 year.

I do have a silent investor, but when it comes to securing funding, it often feels like I’m navigating it alone.

The area has certain advantages like shelter from regulation risk (pretty much as low as anywhere in the country if you buy in the approved STR tourist zones) and long term security (people aren't going to stop going to Orlando anytime soon). 

Streamline your communication process to secure quality tenants.Focus on QualityThe condition of your property matters more now than ever.

Loan terms seem reasonable.