Form 1045B - Complete this application and declaration when applying for a Certificate of Occupancy for Live Work units and Residential Facilities only. 1 Student orms and Tutorials.Office of Business Opportunity. Documents and Forms. Forms must be presented and signed in person at 2800 S. MacGregor Way, Houston, TX 77021. For further information please contact 713-741-6014. Your letter should explain why you're interested in buying the house and include details regarding your mortgage financing and expected closing date. For your convenience, we have made some common housing forms available for your use. Formation of Business Entities and Nonprofit Corporations Under the Texas Business Organizations Code: Online filing available through SOSDirect. For Questions Call (713) 274-1330.