Quote from @Carlyn Chism:I agree with Chris on a lender that might be a scam or make you may so much money interest because of the low credit score that you make $1.00 on the flip or no money.  

Seller financed (probably) won't be reported to the credit bureaus and so won't impact your credit score at all.

So I just rcvd a rental application from Zillow and the credit score is showing 714 which sounds good...

We add up the scores and get a total score that reflects the level of risk the applicant presents.

The harder part for you may be credit scores.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

Just be sure it’s documented and consistently applied to avoid any Fair Housing pitfalls.Another option is to stick with strictly quantifiable criteria—credit score, income ratio, etc.

As a lender, fostering relationships has been an incredible opportunity to create a healthier local real estate market. 

Being a broker myself, I can attest to the incredible value you can bring to clients by understanding not only the brokering side of things, but the application of those funds. 

If you are looking at FHA because of credit score, then I would work on credit scores to qualify for conventional financing or see if you can get a very strong coborrower with high scores.