I assume you are talking about buying a
DVC timeshare in Florida at WDW. Here is some info:
Husband and wife: this is the most common method of purchase in Florida of residential or timeshare property if husband and wife are buying together. It is the most protective form of joint tenancy in Florida for the purchasers. It means you both own the property equally and one cannot sell his or her interest in it without the other's approval; if one of you dies, the other automatically gets it without being subject to probate; and, unlike just joint tenancy with right of survivorship, creditors of one spouse cannot get to the property and have it sold to pay off debt unless both spouses are jointly liable for the debt. Moreover, even then there are restrictions that make it difficult for any creditors to force a sale of the property to pay off debt. This is the one typically picked in Florida unless you have a particular reason for not doing so, like having a family trust that is going to own the property. If you were buying new from Disney, this is what you would get unless you specifically request otherwise. Note, description of husband and wife given above in another post, as being the same as tenants in common, is incorrect. Also, for Florida property, there is no reason to add any words to the deed like "as joint tenants" to accomplish the husband and wife categorization and that is never even done in the deeds there. All the deed needs to say is that the transfer of ownership is to you both as "husband and wife."
Joint tenants with right of survivorship: the same as husband and wife except you do not get that extra protection from creditors. This could be used even if the owners are not husband and wife.
Married person: can be used if desired purchase is for only one spouse to own and appear on the deed. Don't touch this one unless you get legal advice first because of community property rules and need to know exactly what the result is as to ownership and rights against creditors.
Living family trust: what you do if you have a trust set up to hold ownership in property. Frankly, if you do not know what this is, you obviously have no trust set up.
Also, as to recommendation to seek an attorney, that is always something any purchaser should consider, but if this is Florida and you don't have some special reason to do otherwise, the Husband and Wife designation is the one most commonly chosen and that is likely the advice you would get.