If you have bank loan (not an agency loan) or no mortgage at all, an LLC is certainly an option.

Mortgage lenders will qualify you for a higher purchase amount for multis than they would on a single, because they will count the rent you will be making on the other units as additional qualifying income for your loan application.

., Purchase Price: $475,000 ($197.9/sq. ft.).Estimated Market Value: $402,000 ($168/sq. ft.).Financing Terms: 2% interest rate, with a 9-year balloon.Unit B Income: $2,049/month (Section 8 tenant through November 2025).Unit A Income Potential: Similar rent or higher; Section 8 cap for the area is $3,234/month.Monthly Loan Payment (P+I): $1,386.Cash Flow Breakdown (if both units are rented at $2,049/month):Gross Rent: $4,098/month.Vacancy (10%): $410/month.Operating Expenses (37.3%): $1,376/month.Net Cash Flow: $943/month.Key QuestionsWould you be comfortable paying an 18% premium for financing at 2%, especially in a market where current mortgage rates are closer to 7%?

Buy the house and loan her the money. 

I bought a 3/2.00 home in Tampa, FL in April 2022 for $245k at a 4.75% interest rate, I still owe $210K on the loan, my RE agent thinks it could sell for $280k ($70k in equity).

Most lenders are going to be limited to 70% of ARV ($560,000 total loan amount) but that means they could fund 85% or a bit higher of purchase price + rehab ($560,000/$645,000 = 86.8%), which is solid.

Not only will lenders be effected, but borrower credit, business loans, inventory, and auto credit will suffer when those effected have to relocate, find long term replacement housing and their livelihoods and income are destroyed.

Is there a loan assumption available?  

I own a home currently with a conventional loan.

It varies a lot and depends on the vintage of the property and your tenant base.