I see you indicate you Prepare tax returns. You need to learn to use the IRS resources for your profession.

You can buy and sell as many homes as you want whenever you want.

Read the IRS regulation for Tax impacts:

https://www.irs.gov/taxtopics/tc701

And for Personal tax questions, Intuit's TurboTax resources are well organized by appropriate and specific topic. As are the IRS resources you should always reference.