Yes, he can purchase multiple properties of different sorts (single family home, commercial building, DST, Mineral Rights, etc.)One important thing to keep in mind: in order to defer 100% of the capital gains taxes, one would have to spend ALL the cash proceeds from the sale of the property and purchase equal to or greater than the net sales price.

.—(1) As used in this part:(a) “Broker” means a person who, for another, and for a compensation or valuable consideration directly or indirectly paid or promised, expressly or impliedly, or with an intent to collect or receive a compensation or valuable consideration therefor, appraises, auctions, sells, exchanges, buys, rents, or offers, attempts or agrees to appraise, auction, or negotiate the sale, exchange, purchase, or rental of business enterprises or business opportunities or any real property or any interest in or concerning the same, including mineral rights or leases, or who advertises or holds out to the public by any oral or printed solicitation or representation that she or he is engaged in the business of appraising, auctioning, buying, selling, exchanging, leasing, or renting business enterprises or business opportunities or real property of others or interests therein, including mineral rights, or who takes any part in the procuring of sellers, purchasers, lessors, or lessees of business enterprises or business opportunities or the real property of another, or leases, or interest therein, including mineral rights, or who directs or assists in the procuring of prospects or in the negotiation or closing of any transaction which does, or is calculated to, result in a sale, exchange, or leasing thereof, and who receives, expects, or is promised any compensation or valuable consideration, directly or indirectly therefor; and all persons who advertise rental property information or lists.

I have found through my search of mineral records that the address listed above was owned by someone else and the address was different in 1905.The MLS is far more accurate, because you can locate information you need that may be as little as minutes old.

Where does Mineral Bluff and Morganton fall? 

Oil, minerals, you name it they have it in VAST supply. 

As you know The Mexican state grants a mining concession (a permit to explore and exploit minerals in the subsoil) so I have 3 gold mines in store but no idea how to sell it, any ideas?...

There are States in the US that have bills to legalize it as money, others want to buy it and put it on their States balance sheet, others want to attract miners, other States including California and Colorado want to make it possible for citizens to pay government fees using bitcoin. 

In the CA gold rush there were miners and there were the stores that sold the mining tools. 

Originally posted by @Tim Miner:@Greg Dickerson Hi Greg, what's a lien waiver? 

(c) The purchaser shall be entitled to all rents paid or accrued including oil and gas or mineral agreement rentals to the date of the redemption, and the rents must be prorated to such date.