There is a fall back option for you if no regular company will handle it. 

Rents are collected via social security and donations from non profits as these are elderly people, therefore the rent is paid timely- Thoughts?

I would suggest that you park that money by depositing it into a regular IRA at your local bank. 

I am seeking an understanding of something in particular that I haven't been able to find in the forums.It is likely that we will be seeking an eviction judgment against our current tenant and I am wondering how the security deposit factors into that judgment.We will ask for rent & fees owed and court costs in the judgment.

If you can not come up with a plan to save money you will not be able to invest.You should be putting aside a minimum 10% of your gross income into regular savings.

If I co-signed with someone with good US credit could I get a regular bank loan?

Whether you are just a reader or someone who comments regularly, thank you. 

But I know I won't be able to do my job forever and I like the security and freedom that Real Estate Investing has to offer.I'm currently managing one property part-time but I'm looking to own and manage future properties; most likely out of state.

We have also found several smaller local banks and credit unions in border areas (New England, the Rust Belt) that will make secured loans to Canadians.

HUD prefers 60 days, but mine can do 40 or so and be fine.I send a regular notice of rent increase to the tenant and e-mail their caseworker as well.