You're lending money here, which means what you have to manage is risk.
The traditional solution to this, and what makes the most sense to me, is to assess how much risk you're willing to take on, and put a price on it.
You have a borrower, you need to assess their creditworthiness on your own terms. People with low creditworthiness get loans at a higher APR than people with high creditworthiness.
You may not be running your own node, but you are acting as a bank. So embrace it. Charge for your services, and do so at a price that makes the trade worth it for you. You're in the risk management business now. It's tricky to price, but make sure that the risk of default and the psychic cost of taking on that much risk is covered by the fee you charge. If 1% isn't worth it to you then it's not worth it to you. Either negotiate the price up or decline the transaction.
In short, don't "hand over" your Bitcoin. Sell your liquidity at a price that makes it worth it for you.
Thanks for your reasoned answer. Let's see if there are more ways to emulate running a node (where you are still in control of your bitcoin) while not having to run an actual node. By definition, this will be hard as that's exactly what BTC solved and LN by extension by leveraging BTC security and game theory forcing actors to act honestly (or be penalized greatly for not doing it).
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