You create a note, a deed of trust, and a handful of other documents that protect you as a secured lender.

I'm having trouble locating an escrow account for their security deposits with .09% interest. 

I'm just trying to be creative, as I really want to secure this property, but am having difficulty with lenders at the present time.

(We're a correspondent lender for PenFed - a correspondent lending relationship is the middle ground between brokered and direct... their rates and their guidelines like a broker, but originate, underwrite, and fund, as a direct lender in-house)(No, I'm not allowed to share their guidelines, either)

Can someone recommend a security camera that requires no WiFi?

Make your property hard to rob and the tenants feel safe by adding in physical security deterrence, lights, fence, ADT sign, a caution sign for a dog, cameras, etc.Hope that helps, good luck!

The part I like is the security of having 30 year fixed rate loans at ~5%. 

The loan is secured by the main home.

An investor who accepted to help me get started, asked me to put up the money for the repair on a property that is already purchased (I am not on the deed or title) for a return of 50% of the money I put in (after the property is repaired and sold) and When I asked, what's my security on the money I pay, I was told that we will be signing an affidavit of interest in real property.

We are looking for a cloud based (hard wired) security system for a mid-sized apartment building.