Based on your question, I am assuming your lot is located in a plat, and the alley was dedicated as part of the plat. Even if there is no visible evidence of the alley on the ground, it still exists, at least for the benefit of plat owners. An alley typically provides ingress and egress only. If the alley is legally vacated title would go to the adjoining owners. As you may have guessed, there are a number of issues, but an expereinced real estate attorney with a copy of the plat map could...
You did not indicate whether you obtained title insurance (even if the liens were excpetions) at the time you acquired the property from your parents. If not, you may want to contact a title insurance company in Manistee County and request a title commitment to see if there are any encumbrances. Based on the information contained in your question, it is not clear what a quiet title action would accomplish. You should seek the advice of counsel to see if there may be other issues going forward.
It is easy to convey your interest to your son, but you should at briefly consult with a lawyer about tax and other ramifications. There are also a number of options available to accomplish your objective. Get some advice to help choose the best option for you. It should be a fairly simple and inexpensive process. Good luck.
The police and townships are reluctant to be involved, but that doesn't mean you have no rights. PA 56 saddled townships and law enforcement with responsibility for road ends they have historically avoided. Contact an attorney who specializes in riparian rights matters. Good luck.
You should have a lawyer experienced with easements review the easement. If it is an easement in gross it is personal to the grantee and may not be assigned. If the easement is appurtenant to the grantee's property (which you should assume for now) action on your part will be required. You should get advice before the foreclosure sale and certainly before the end of any applicable redemption period.
Non-lawyers who choose to represent themselves frequently believe they have been treated unfairly, simply because they don't understand the way the legal system works. If you believe you have a claim, or have otherwise been wronged, seek the advice of an attorney who may be willing to review the matter and provide you with some perspective.
The foreclosure notice in the newspaper should disclose the redemption period (typically 6 months). The owner, which appears to be your landlord, would have the right to possession until the end of the redemption period. If you choose not to pay, your landlord would have to evict you.
Brian's response is spot-on. Prior to speaking with your landlord you should review your lease to determine whether you have the right to pay a termination fee (often one month's rent) or sublease the premises. It is risky to simply walk away, with respect to both your financial liability and credit rating.