My contract renewal is happening on the month of June 2017. I am happy
to continue in the same apartment if we can find a mutually agreeable
rent amount. In the case that it is not so, Please do consider this as
my notice for vacating the apartment.
This should constitute sufficient notice to comply with the lease.
What is said is equivalent to saying, "I give notice that I am vacating", but that I will entertain subsequent offers to enter into a new lease on different terms.
The tenant isn't making an equivocal statement that is not definite or merely a probably statement. The tenant has made a definite statement that is in the court of the landlord.
There is never a time at which the landlord is uncertain of the meaning of that statement. Until a modification agreement is reached, the notice is in force. If a modification agreement is reached, it invalidated the lease.
Also, prefacing a statement in the feminine language of "Please do consider" has been held in case law (most of which I haven't read since law school) to not detract from the fact that it is a binding instruction. Courts interpret that kind of preface as being used to phrase an definite statement in a polite manner and not as a discretionary statement that the recipient can interpret as he wishes or not. Despite the notion that "please" sometimes indicates discretion of the part of the receiver, it does not have that legal meaning in this kind of construction. For example:
"Confirming our telephone conversation please be advised that my client has elected to cancel the contract because of the fact that a firm mortgage commitment has not been obtained within the 60 day period as called for under the contract.", was held sufficient to convey a definite intent to cancel the contract. Weston Builders & Developers, Inc. v. McBerry, LLC, 891 A.2d 430, 467 (Court of Special Appeals 2006).
"Please consider this letter as official notification that on March 14, 1996 at the regular meeting of the Monroe County/Switzerland of Ohio Local School District Board of Education action was taken to nonrenew your current administrative contract that expires July 31, 1996.", was held to be adequate notice of termination in State ex rel. Haught v. the Monroe County Board of Education, 98-LW-4666, 784 (Court of Appeals of Ohio, October 16, 1998).