He explained that they have money from savings and can make a security deposit.

You will need a good business formation/securities attorney. 

I only rent now to people in essential Industries or with guaranteed payments such as disability or Social Security.

Medium term renting out of the 1/1 apartment at 1200/monthLong term renting out the 2/1 at 1900/monthPITI = $2455 Additional predicted monthly expenses and predicted vacancy: $310/monthCash flow per month = $335Cash Down: $8700Investment to furnish garage apartment for medium term renting: $4500Cash on cash ROI = 30.5%Renters secured on both the day after closing to move in on 4/1.What made you interested in investing in this type of deal?

In her case, since she just came out of bankruptcy, she was unable to secure a loan modification...not sure if from the bankruptcy or because she'd already modified it once.

Even if you just spend a few extra months trying to secure financing, the interest could really be a bummer.  

Occupied- As a lender we like to see long term leases in place with a security deposit, first and last of course and length of leases.

If they can’t do that then amend to subtract losses from security deposit if that’s legal in your state.

I've had my current job for 2 1/2 yrs making 75K per year and have a clean background but before I had my current job I was unemployed for a while and ended up filing for bankruptcy causing my credit to take a huge nose dive (sub 500 range). my Question is: to avoid the credit requirement (I wouldn't be able to find a co-signer) would I be able to put an entire lease down as a security deposit and pay my rent as usual so long as my income qualified?

In fact, it is borderline right now based on estimates whether the cost of repairs and cleaning will exceed the security deposit.