Yes they can give permission
You must get permission from the owner or the owner's legal agent.
The owner of the property, or if a business, the person in charge of the business.
A property owner has the legal right to give or deny permission to others to enter their land. This control is usually managed through property boundaries, fencing, signs, and legal agreements. Failure to adhere to these rules can result in trespassing charges.
A landlord can only go onto property unannounced to handle an emergency. In Pennsylvania, a landlord needs to give the tenant 24 hours notice to enter a property
No, in order to enter the tenant's property for whatever reason, the landlord must give prior written notice; usually seven days.
You should have permission in writing from all the owners of the property.
Your neighbor has no authority to grant any rights in your property to a third party unless he was granted the right to do so by you or a prior owner of your land.
If you have given your neighbor permission to maintain a portion of your land they can't later make a claim of adverse possession. To prevail in an adverse possession claim the use must be open and without the permission of the owner. In order to protect your rights you may want to consider asking your neighbor to sign a statement if he wants to continue using that property. It should state something to the effect that he is maintaining that portion of your property for purposes of convenience and with your permission. You should also state the permitted use is not intended to create any rights of easement or other rights to your property in your neighbor's favor and can be terminated at any time by a notice in writing from you. You should seek the advice of a real estate attorney in your area who could explain your options under the laws of your state.
Once the property owner gives consent to search, ALL may enter. The permission is blanket approval for a search to be conducted by whatever police manpower is present.Side-note: As a practical matter - ANY officer who would enter an unknown premises, alone and un-aided, to search by themselves for wanted subject when back-up was available, is a fool!
if it is your property then no- if it is shared then yes you must supply a key
You know it is your land and you know the fence was built x number of inches/feet inside that property line. You must let him know you know where the line is. And if you give him permission to use it, he cannot claim adverse possession.You may lose the property unless you take steps to protect your interests. There may be a presumption that you have failed to exercise your right of ejectment within the statute of limitations and the hostile encroachment on your property will cause you to lose that portion of your property forever. You might be able to overcome this presumption by showing you gave written permission to the neighbor to use that portion of your land prior to the expiration of the statute of limitations.Many city ordinances require a setback from the property line for installation of fences. You should take the necessary steps to prevent any acquisition of the strip by adverse possession.You should make certain to maintain that portion of the property by keeping it trimmed and free of debris. Your regular maintenance will prevent the neighbor from claiming it.You should make certain the boundary line is clearly indicated with some sort of marker at each corner. It is important to not simply allow the neighbor to use and maintain that strip of your land as though it is a continuation of his own property.If you think a problem may develop, you should invest in an hour with an attorney who specializes in property law who could advise on how to give proper notice of the property line and permission to use that strip if appropriate.