<prompt> Human: My wife and I are both in tech and make approximately 160k per year with about 200k in savings. At our previous companies, we both received stock options and it looks like both companies might get acquired in the next couple of months. It looks like we could receive pre-tax approximately 150k from the first 99 likely to sell and 800-1,000k from the second 90 likely to sell.We are pretty overwhelmed by the thought of potentially getting these two windfalls in such short succession and had a couple of quick questions:1. We want to talk to a tax lawyer. Should we talk to one before the sales, or wait until we get the cash? 2. Our simplified plan is to pay off the house 300k, donate a significant amount 50k? to charity and then park the rest into index funds in our IRA and normal investment accounts. Any other suggestions? Im wondering if we should perhaps hold off on paying off the house 3.5 interest based on historical market returns. 3. We are considering buying a small condo for my father to retire in and having him pay us rent. He is extremely frugal and we arent concerned that he would take advantage of us. However we dont really want to enter into a financial arrangement with a family member. Is there anyone here that has done this successfully?Thank you for any and all suggestionsconsiderations!  <response>: First of all, congrats!Second of all, you should talk to a tax lawyer now, like yesterday. Their are most likely things you can do before you get the money that may reduce your tax liability.Third of all, with an interest rate that low you may look at some investment vehicle with that money rather than paying the house off. That is assuming cash flow isnt an issue and you wouldnt materially change how you live going forward by NOT paying the house off. Having said that, every investment is a risk and a paid for house is a paid for house 