For me as well as the seller.First, you have to define Sub to financing.Do you mean the reckless kind where you overpay for a property, take over the financing and borrow from others to cover closing costs and holding costs when you have no money, no credit, no income, no reserves and can't tell a warranty deed from a deed of trust and you close on the kitchen counteror do you meanbuying below market value, already having a nice income, having reserves, using escrow and title, already understanding the due on sale clause, have done a lot of creative purchases and know when to use and when not to use creative finance and how to recover if something goes amiss?

Cold calling, mailers, signs, google/Facebook, RE meetups, RE agents are all ways a whole sales would find deals

Transfer from personal name to LLC/Due On Sale ClauseIf one is transferring property title from personal name, a Grant/Warranty Deed would be drafted/recorded to transfer title.

This is not uncommon and actual more typical as it is based on sales price and even though the first appraisal was $130k the new one gets reset based on its recent sale and home prices are not up 10% over a few months.You are going to have a hard time getting a lender to use other comps compared to this home as it recently sold.

My wife's siblings have built 2 house on this land as there own houses they are living in The property is a total of 15 acre and each siblings got a portion of the property.

Particularly the state licensing portion? 

The 1031 must be a sale of investment property followed by the purchase of investment property. 

My Question is, for these up sales how do you expose these packages to the guests, are they included in your listing or added to the base price, if a guest chooses a package do they pay for the reservation how they would normally through the booking platform then pay for the package separately?

It means that you, as the purchaser, cannot close on the purchase of the property until (subject to the terms of the contract) the seller identifies a new asset to acquire with the proceeds of the sale. 

It will be about 3% of tax value which is the sale price in a recent sale.