Whoa, 3 or 4 days total time ever or 3 or 4 days a week? Has she been offered to you for free or just for training? If you think you are able to help her, then by all means try. However, something to consider is how much it is going to cost you to keep her the time it takes to train her (probably many months or more than a year) and whether or not you think she will bring more than that total cost at the end of it all. If you are more interested in just getting her to a better home, then go for it. However, if you are counting on making a profit, think again. You will likely lose money in the end, but she will be safe and in a home.