My name is ***** ***** I’ve been involved professionally with dogs in the health and behavioral fields for over 18 years. It will be my pleasure to work with you today.
In situations like this, there are limited options available. One is to start gaining her trust over time. It would take a lot of time but would help her get used to your scent. Start feeding her on a regular basis and run your fingers through the dry dog food so your scent is everywhere on it. Take an old towel you have slept on and leave that under the food. Put the items down and move off far enough that she feels secure eating. Gradually you will move closer and closer. This will probably take a week or two. Eventually you should be pretty close. Then just sit down when you put the food down and wait for her to eat. After a few days of that, have some tasty treats like hot dog slivers or liver on the ground next to you or in the palm of your hand and see if she won't come over to you at that point. Do not grab her initially. You want her to get used to you touching her first. Once she is used to your touch you can then perhaps get a slip leash or collar on her. If you try for a collar, have the leash already attached.
The other option is a safe trap for her. You would put it out and maybe even put a blanket over it to provide her with a place to sleep if she decides to go into it at night. Place the food in the trap but set it so it won't trigger the door to close. Put the food near the enterance at first. As she learns to eat the food in the trap, move the food further into the trap until it is in the back. Once it is all the way in and she is eating consistently from the bowl, then set the trap to close when triggered.
Besides gain her trust or trap her, there isn't much you can do unless you live close enough for her to follow you all the way home. Even then she may not want to go into your house. See traps here:
Also talk to your humane society and animal control. They may have one they will let you use to catch her as well.
I hope this information is helpful to you. If you would like any additional information or have more questions please don’t hesitate to press the reply to expert or continue conversation button so I can address any issues you still have . If you do find this helpful, please take this opportunity to rate my answer.