For 2 month stays at an AirBnb, is it possible to request a copy of TM30 from the landlord or how can I go about getting one? TIA

My 1-year-extension (based on "Retirement") is due in March 2020. For exceptional family reasons, I am in my home country now and will not be able to return to Thailand before February 2020, be there for about 3 months and then return to my home country in May 2020 for several months again, for a last time (no intension to settle back in my home country). QUESTION : is there a "minimum" number of months compulsory to be in Thailand in order to be still allowed to make the 1-year-extension ? THANK YOU !