Do they have a higher credit score?

Consider the potential risks like higher insurance rates and any limitations on renovations due to FEMA’s rules.

Another approach could be to use LPMI, which rolls PMI into a slightly higher interest rate, potentially saving you monthly PMI payments.

He's on SSDI (Social Security Disability Income) at just under $1,500 a month and he wants to do some wholesales to make some extra income.Lets say he does a deal or multiple deals and makes any assignment fee on it/them and the profit exceeds 1.5k which is higher than his disability per month.

These loans often have more straightforward qualification requirements for investors with multiple properties but may have slightly higher rates.Cash-Out Refinance on Your Single-Family Rentals: If each has around $70k in equity, a cash-out refinance could provide some capital for the down payment, renovation costs, or even help you buy the 4-plex outright.FHA 203(k) or Conventional rehab loan: If you’re planning to occupy one of the units as a primary, FHA’s 203(k) loan or a conventional renovation loan could help with purchase and rehab costs at lower interest ratesPortfolio Loan: Some local banks may offer portfolio loans for investors with multiple properties.

I’m willing to accept higher interest rates on a line of credit as the overall $$ amount is significantly lower than refinancing an entire property at the above mentioned 6-7%, not to mention restarting the amortization schedule all over again.

Quote from @Scott Scialabba: Quote from @Corby Goade: Lots of things to consider here; generally speaking, the higher the ROI, they less desirable the properties are.

However, those few who are financially saavy and have integrity and grit I believe will benefit from it until they are able to have enough experience to go off and do their own thing, charge less fees and be able to have more repeat business while keeping a much higher ROI themselves.And NO, i've never been in this program, been around much longer than he even thought of this revenue stream. 

I "could" make higher returns on my equity if I borrowed, but it also increases the risk.  

It’s possible I could get closer to $4,000 in LTR rent but a real estate agent ran comps and reported it might be a stretch / bring higher DOM.