They are charging 1/2 of the mainteance that you would have to pay for the next 10 years to legally get your name off the deed.
They are scamming you for 1/2 of what they are calculating as 10 years of MFs. No, they cannot legally get your name off the deed by charging you money like that.
The ONLY way to legally get your name off of a deed is to: (1) legally convey title (and execute the deed pursuant to the laws of the jurisidiction where the real property is located - note some states have different laws for notaries and what is required to execute a deed, ie some have witness signatures, others have thumbprints in the notary book) to some other person or legal entity whether by sale or gift or (2) be subject to a legal process whereby your legal ownership is being eliminated because a court or trustee has acted within the bounds of the law to terminate your ownership interest. That could be a court ordered foreclosure, a non-judicial foreclosure, or some other court process whereby the court orders that a deed be recorded (that you as the owner did not sign) legally transferring the ownership to another. It could be a judgment creditor, a lender, a HOA that foreclosed due to non-payment, etc..
When you die, depending upon how title was held, your estate may still have a legal ownership interest, and in that circumstance, the executor of your estate must seek permission from a court via a probate to act on your behalf. If your title was held as a joint tenant, then nothing is required, because by definition the legal ownership transfers to the remaining joint tenant(s) when one joint tenant dies. The only thing to record is an affidavit of death of joint tenant.
Anyone who suggests that they can "get your name legally off of a deed" if you only pay them 1/2 of future maintenance fees for 10 years, those folks are the same ones who told you that if you only paid the taxes, you would be entitled to your Nigerian uncle's millions that have been held in a bank waiting for relatives to be located. Take a step back, no one knows what MFs will be for next year, let alone 10 years. That should be your first clue. No one knows what insurance rates will be, utility costs, if a hurricane will decimate your vacation property, etc. etc.
Those folks are no different than the ones who want to buy something from you off of FB marketplace or Craigslist and they are going to send you a check or money order for 2x+ the amount of money you are asking for whatever it is you are selling, and you just need to send them the change. In the "good ole days" they used to send checks or fake USPS money orders and recipients would deposit those checks or money orders, and then 2 weeks later their banks would reverse the deposit because the checks were drawn on fake accounts or the USPS said the MOs were fake. In the meantime, you paid to ship whatever it was you were selling off to whoever scammed you and you also sent them your own check for the difference in price. So, you lost the item you were selling, you paid the shipping, and you paid them money. Nowadays, the scammers say that they'll pay you via Venmo, but they have a "business" account so they can only send the money to a business account, and they'll front you $550 to upgrade your Venmo to a "business" account and then you can pay them back via PayPal. They'll send you fake screenshots of depositing money into a fake Venmo account (there isn't a difference in Venmo accounts) and the one getting scammed sends them the $550 "fronted" back via PayPal, and lo and behold, there is never any money that ends up in your real Venmo account.
The schemes change constantly. Don't be gullible. If you want off your deed, then sell it or give it away. Those are your options. I never suggest waiting for a foreclosure, but that is the other way to get off a deed, it just has consequences.