cold process vg tincture

As you may or may not know, medicinal is legal in MI. I am looking for better ways to help my patients. Some do not prefer to smoke it or want that THC high. It is now July 2017, I started a VG tincture(cold method) in a quart jar dec 2016. I did NOT decarb. I used 1.5 oz for each quart jar. I kept it in my cupboard with no light so it stayed maybe 75-80 degrees. I have yet to strain it. in the meantime I have shook it manually daily for many months.

After investing a 1/4 lb and countless hours shaking it I want to make sure I finish the process correctly. This is why I come to the grasscity forum to ask my fellow caregivers advice.

first - What is the best way to strain off the plant material? (I have no intention of reusing it)
second - After it is strained what is the best method to store it to keep potency?
third - Can anyone suggest an average dosage. (I make kief or hash candies with 200mg potency)
fourth - What is the shelf life of the active ingredients? ( to obtain effectiveness)

I will say that I would have just used a metal mesh strainer and had my patients test it. However, one of my patients has had a leg amputated under bad circumstances. They could not subside his pain before amputation and from what I have learned this will create a phantom pain and I want to minimize that as much as possible. I have read that applying directly to the site will help (not ingestion). My patient prefers not to smoke it but with the advances in medicinal marijuana I see no reason they should suffer for the rest of their life. And, of course I am always looking for ways to improve the quality of life for mine and any other patients. We never know but someday I myself or many others suffering may need this information.

Finally, I have done hours of research to find the best way to make vg tincture and have found many many ways to do it. I chose not to activate or decarb as this can be done when using the tincture. I welcome any advice and thank you all so very much for your input. It will not go unheard and will help my patients and many more I pray.