Carl
Level 15

Get your taxes done using TurboTax

"One of my challenges is TTX Business will not allow you to put a service date for a property that is before the start date of your company."
That is absolutely correct. There is no way possible your business could put anything into service, before that business existed. What kind of business return are you completing? 1065, 1120 or 1120-S?
" all but 2 of my 7 properties were put in service before the start date of the company. "
No they were not put into service "by the business" prior to the start date of that business. What are you filing? I can (maybe)  help you make things right without having to do any overrides. If you do an over ride, then you completely invalidate the 100% Accuracy Guarantee.