They want $225k for a property with around $150k?.... That should answer a lot of your questions right there. Don't get your hopes up on this situation.
Tell them if they want you to sell it for them, MLS or off market, they have to be reasonable and sell it for FMV. The "good condition" of the property makes very little difference in that value, all other things being equal (sq ft, area, type and number of units, etc) . Even if you find an investor off market and double end this sale as the sole agent, that investor will expect you to comp it for them to justify the price. You'll never sell it for more than it's worth, that's not how investors do things. If they insist on their delusional price, don't waste your time with them any longer.
If you're thinking of buying it yourself, make sure the cash flow numbers are good and then comp it as accurately as you can and offer to buy it from them for FMV minus 6% they'll save on the commission you won't charge them. Win win for everyone, assuming the numbers make sense for you and your investing goals.
Wholesale? Pshhhh... No way on this one. They are already delusional about the price. Do you think they'll be willing to take 20 or 30 thousand less than FMV? I don't think so. This situation is the polar opposite of what makes a good wholesale.