Can you afford to help your kid start a business?

Amazon. Chipotle. GoPro.

These household-name businesses were launched thanks to investments by the founders’ parents. But parents also have sunk plenty of money into their offsprings’ doomed enterprises, sometimes endangering their retirements and family relationships in the process.

In my latest for the Associated Press, how not to offer money you can’t afford to lose.

Q&A: Mixing family and finances

Dear Liz: I have a relative who is a certified financial planner. He suggested we invest in annuities from which he will make commissions. When I asked him about his commission amount, he said he doesn’t feel the need to disclose that information because the fees don’t come out of my investment, therefore making them irrelevant. He says his fiduciary responsibility makes disclosing his commissions unnecessary. Is this correct?

Answer: Your relative needs to review the CFP ethical requirements. He wasn’t required to disclose dollar amounts or percentages of compensation until you specifically asked for that information. Once you did, he’s obligated to tell you. He (and you) can learn the details on the CFP Board of Standards site (www.cfp.net).

Commissions are far from irrelevant, especially when the product is as expensive and complicated as an annuity. Before you invest in any annuity, you should run the investment past a fee-only certified financial planner. Fee-only planners are compensated only by fees their clients pay and not by commissions that could influence their advice.

Q&A: The pitfalls of renting a house to relatives

Dear Liz: My son and his family are having trouble with money. I see him stepping up since he had my lovely granddaughter. I am getting ready to retire from teaching. I have my teacher’s retirement and a nest egg set aside. I was thinking of buying him a place where he could pay me rent and when the time happens, move to find his future. I was told, though, that I would have to live in the home after purchase or I cannot get a loan. I just want to see where I can stand in this endeavor.

Answer: People get loans to buy rentals and other investment property all the time. But that doesn’t mean you should be one of them.

Taking on a mortgage in retirement is risky, to say the least, and you’d be putting your financial future in the hands of a young man who has “trouble with money” and who hasn’t always been responsible, given your comment about “stepping up.” When his family hits a rough patch, how hard would it be for him to justify skipping a rent payment, or six, to Dear Old Dad? And what would you do about that — evict him and your lovely granddaughter?

If you were wealthy enough to pay cash for this house, take care of all the ongoing costs and not care if he ever paid you a dime, then maybe this scheme would make sense. In your case, you’re inviting financial distress and family trouble at a time in your life when you should be reducing the odds of both.