An offer consists of: 14 Family Contract (or similar contract depending on property type), Seller's Disclosures, MUD Notice, HOA Addendum, Other Addendum. In general, Texas has very few official legal forms.HOUSTONCONSUMER.ORG. Mobile Food Unit Property Agreement Letter. (Complete all Parts of this Letter). My lease is up at the end of August. Can I get an apartment with just an offer letter? This is the most frequently used contract form. Homeownership is a dream for many Houstonians but is out of reach for many residents. My lease is up at the end of August. Can I get an apartment with just an offer letter?