Life Lease rights

I'm the lessor(landlord) of this agreement what are my rights?(property is in Michigan) Please tell me all of the rights that you can think of.
(Please note: I removed the names and addresses for security reasons.)

Lease Agreement
May 22,1996
We the undersigned, on the above date, agree to the following lease agreement:

We ____ and ____ of ____ , ____ , ____ ,
Agree to give a lifetime lease to ____ and ____ of ____ ., ____ , ____ , on a parcel of property owned by us. Description as follows: Beginning at the N.W. corner and running 300 feet East and from same beginning corner running 350 feet South.
All parties agree to the following:
1.) Woods is to be maintained in good condition with no build-up of unnecessary clutter (such as open dumping or junk vehicles) with only necessary trees being removed for reasons such as: removal of building site, clearing driveways and thinning to maintain health a beauty of wood site. Felled trees to be used by leasees as desired.
2.) Leasees to maintain both driveways on said property.
3.) Leasees may put any housing and storage structure (such as pole barn or garage) on property the township allows. Leasees are responsible for making sure all things concerning township codes or regulations are followed.
4.) If taxes increase because of said structures put upon property by leasees, said leasees herein agree to pay the increase.


Prepared by: Signed by:
____ ____
____
____
____
Witnesses:
` ____
____
Notary Public:
____

 

so does that mean I have no rights?

 

Well the tenants claim that I gave up all my right’s when I signed the said agreement.
I would like to know if That is true, and if not what are my rights?

 

OK thanks for the advice