You don't have to talk to him about D stuff. You have to talk to him about childcare.
Consider this: How much does that loan really cost? Loan Amount: $ 23,000 Interest Rate: 8% Length of Years: 5 Monthly Payment: $466.36 This loan will really cost you: $27981.42
You are talking about $5000 over 5 years. In my book, it is well worth that to have STBX out of your business.
But, you should be able to get a better deal if you give it to him up front. He can have the cash NOW (which he wants for magic life with OW) and he can make interest on it.
So if you offer him $20,000 up front:
How much does that loan really cost? Loan Amount: $ 20,000 Interest Rate: 8% Length of Years: 5 Monthly Payment: $405.53 This loan will really cost you: $24331.67
This option only costs you $1300 more, spread out over five years — less than $300/YEAR.
How much does that loan really cost? Loan Amount: $ 19,000 Interest Rate: 8% Length of Years: 5 Monthly Payment: $385.25 This loan will really cost you: $23115.09
At $19,000, you pretty much break even, it costs you an extra $20/year. Somehow, I think STBX would accept $4000 less to get the cash now.
Of course, you could start the bargaining at $17,000 (for a total cost over 5 years of $20681.92) and then split the difference to end up at $20,000. (The TWENTY part of that might let STBX feel good about that.)
If you really want a reasonable trade-off for him using the storage space, charge him market rental rates for a storage space that size starting after 3 months. Somehow, I think he'll manage to rent space at U-haul. But, again, the better move is to just get his financial interests separated from yours, now.
