Trying to adopt Filipino relative(2nd cousin) can this happen?

i have read the posts here about the cost of phone calls to Philippines and cost of shipping items to Philippines.i want to adopt my Filipina Wife's first cousin. she is the oldest child of my wife's uncle and aunt. my wife is still Philippine Citizen and i am American who's ancestors came to America on the Mayflower! my wifes 2 uncles acted like a nanny to my wife until she reached 18 years of age. so my wife has been supporting their children since she got her first job when graduating collage. we still send them school supplies and money.now to address the phone call cost. before i moved to Philippines to marry my fiancee (now my wife) (i could not find a co sponsor so i moved there to marry my wife) any way i used a MAGIC JACK and the internet to make my calls to my Fiancee EVERY DAY ! we would talk for hours every time! it only cost me about $50 a month! your land line style phone plugs into the device which plugs into the usb port of my computer. when i moved to Philippines i used the same magic jack in my laptop to make and receive calls to and from the USA with my same phone number for the same price!!sending items to Philippines: i used the usa postal service to send 1 shoe box with school supplies to my fiancee to help with expenses. well i had placed $30 worth of stamps on the box and it cost me another $40 at the post office.later i learned about Balikbayan box's you go to a Philippine food store and pay about $5 for a box that is 24x24x18 inches (for ATLAS SHIPPERS). you fill it with your supplies and keep and inventory to fill out the customs form that comes with it. the box can be filled with concrete if you wish as there is NO WEIGHT LIMIT. take the box back to the store and pay the fee. in my case using atlas it costs $105 for shipping. ATLAS picks up the boxes 1 time a month and hauls them to California where they are loaded into a container and placed on a ship returning to the Philippines. it takes around 2 months traveling by ship to reach Manila and then customs looks at the forms and then ATLAS loads the boxes into trucks and delivers the boxes to the address you put on the label! each store may use a different shipping company . for instance here in south dakota the store uses a diffrent shipper and it cost us $135 to ship a box that was different dimensions but just as large.in fact i have NEVER had one of my boxes even opened, much less missing items! when i moved to Philippines i shipped 8 balikbayan box's to the address of the condo my wife rented for us to live in near her job. one contained an 8 inch thick queen size memory foam mattress. i opened the box it came in but did not un wrap it and placed it in a super large vacuum bag from walmart and used my shop vac off and on for 4 days to pack it down small enough to put in the balikbayan box!i left the boxes at the store in Desmoines Iowa on August 25, 2015 and Atlas delivery guy delivered them to our 3rd floor condo in November and all 8 were in perfect condition!i later inherited a bunch of money but it was just trickeling in slowly because my siblings were conspiring with the trustee to not go by the trust document like they agreed to do. (i was suppose to get their quarterly checks untill each one had paid me my 25% of the property value they received .so i was going to go to costa rica as my wife did NOT need a VISA to enter, and do volunteer work at places while traveling north to the border. she required a C1 transit visa to change planes in America to get to costa rica. at the Houston Texas Airport we had to go through immigration and Customs with ALL our luggage . our next flight was over 12 hours later so we went to a hotel with our luggage. at the hotel i checked my email and had one from my step dad who was the trustee , and he said he WAS NOT going to be giving me the money he was legally bound to give me by trust documents and the agreement THEY ALL had signed when i was in Philippines. (they thought i was still in Philippines!!).i got so mad i just called a friend and paid him $1000, to come pick us up with a truck and take us to IOWA. i was so MAD that i was going to take every dime of the money by killing them all!! my wife pleaded with me until i relented and just hired a lawyer! they had already stole over $35,000 from me!! well i got every dime that was owed me, which allowed me to hire an immigration atty for my wife, i now had money and did not need a co sponsor! because my wife had entered America on a C1 visa, her only win was because she did NOT arrive by ship or other, she had ARRIVED BY AIR with a TRANSIT VISA. only took 1 year and some lawyer fees and of course the regular filing fees. SHE received a 10 year permanent resident card!took less than 60 days to get the visa and arrive in AMERICA. DO NOT TRY THIS YOURSELF as it will make your wife an illegal immigrant until you file the paperwork with the government. also it helped us because im BAT SHIT CRAZY!! and the problems i had with the trustee! i actually told the immigration agent in Minneapolis that i intended to KILL THEM ALL but that MY WIFE HAD TALKED ME OUT OF IT!!!!but back to the adoption of my wife's first cousin. she can NOT stay with my wife's mother, who we support, because my wife's father attempted to molest her many times and only because her 2 brothers and mother helped her was she able to fend him off!!!! i do NOT need to go to PRISON in Philippines for KILLING A RAPIST!! if someone can give me a trail to follow to adopt the first cousin of my wife, the little girl is around 8 years of age,and it would be nice if we could give her a good home with American Comforts and an American Education.i have not even discussed it with the wife yet!