At least for the first and second time, after that I will consider other methods.

Depending on how everything is set up, what you consider a max for retirement account contributions may only be the 20k limit whereas you can go up to ~$70k in total with other methods.

.- If still skeptical, ask for personal references from employers, community leaders, or other respected individuals who can vouch for their character and reliability.By using these methods, you can make a more informed decision about renting to this couple, giving them a fair evaluation while also protecting your interests as a landlord.

Quote from @Vinny Incognoli: Your equity is not a savings account from which you can withdraw for free.

While separate accounts sure helps with the audit trail, it's not necessary if you note the reason for a a deposit and withdrawal on the drafts or "source" document. 

If not, agree they need to pay you with a different more verifiable method or you start the eviction process.I have had so many tenants with no bank accounts. 

It's not the ideal living condition, but it's a proven method of investing when real estate is unaffordable.

The BRRRR method is definitely NOT the most comfortable way to get started, but it's so worth it and you learn so much along the way.

Ive been trying to decide between; flipping a house that's on the market, flipping a foreclosure property, building a spec house or doing the BRRR method.

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.