You can set it up in your home state, and if you want to own properties in DE, and any other states, you file a Certificate of Authority in that state.

I would invest in WSP only if I was doing a flip or if I was planning to sell on a  Contract for Deed.http://wspmn.gov/651/Rental-License-Application-De...

Remember it will still have the business use percentage. and Think about what is considered de minimis.

I know that  this purchase doesn't qualify under the De Minimis Safe Harbor rule since it is over the $2500 per item limit. 

Here is the link: The truth about getting around due-on-sale clausesIt answers, I believe, ALL of the questions that was already posted here and included proof.Here is an excerpt:Rise in interest rates would likely increase enforcement of due-on-sale clausesThe Wellenkamp and de la Cuesta cases, both of which involved lenders aggressively enforcing their due-on-sale clauses, occurred in the early ’80s.

I was told that Delaware County, Pa is good on rental.

Originally posted by @Bradley De comarmond:Welcome to Bigger Pockets @Jerry SoerBP is loaded with all the information you will need to succeed in whatever niche of real estate investing you wish to pursue and the community is filled with knowledgeable investors and professionals to learn from and connect with.

I see that Texas, Nevada, and Delaware are recommended; what are the advantages of these states? 

On a different note: To consider an LLC as a beneficiary, it would be best to use Private (anonymous ownership) LLCs: "The most popular states for anonymous LLC's are Delaware, Wyoming, and New Mexico.

Now I suppose you could argue that Wyoming, Nevada, or Delaware is "better."