OPINION
Adam Rene Sotelo (Sotelo) appeals from a modification order in a suit affecting the parent-child relationship in which the maternal grandmother was appointed a joint managing conservator with the exclusive right to determine the child’s primary residence. At issue is the sufficiency of the evidence to rebut the parental presumption. Because the parental presumption is inapplicable in a modification proceeding, we affirm.
FACTUAL SUMMARY
Adam Drake Sotelo (Adam) was born on Christmas Day in 1999 to Adam Rene Sotelo (Sotelo) and Lorie Eileen Gonzales (Lorie). The family lived together in Odessa, Texas until Lorie and Adam moved to Monahans to live with her parents about a year after the child was born. In April 2001, Sotelo filed a voluntary statement of paternity and sought sole managing conservatorship of Adam. Suit was filed in Ector County, Texas, where Sotelo continued to reside. Lorie filed a counterpetition. In November 2001, So-telo was adjudicated as Adam’s father. Sotelo and Lorie were named joint managing conservators and Lorie was given the exclusive right to establish the primary residence of the child. The court entered a standard possession order.
In April 2008, Sotelo moved to modify the parent-child relationship. He sought the exclusive right to determine Adam’s primary residence or, in the alternative, that Adam’s residence be restricted to Ector County and contiguous counties. Lorie filed a motion to transfer the cause to Ward County, a motion for writ of possession, a motion to modify the suit affecting the parent-child relationship, a motion for enforcement, and a motion for judgment on child support arrearages.
The trial court issued a writ of possession, finding Lorie was entitled to possession of the child, and transferred the proceedings to the 143rd Judicial District Court of Ward County. The maternal grandparents, Rose and Charles Cartwright, intervened seeking managing con-servatorship, possessory conservatorship, or reasonable access. Charles was non-suited and in February 2004, the trial court appointed Rose as the temporary sole managing conservator. Sotelo and Lorie were appointed temporary possesso-ry conservators. In March, Rose filed a motion for enforcement, complaining that Sotelo and Lorie had failed to return Adam to her.
In April 2004, Peggy Honaker filed a home study with the court. Honaker recommended that Adam be cared for by one of his parents but by that time, Lorie was no longer in the picture. Consequently, she recommended that Sotelo be appointed managing conservator.
The court found that appointment of a parent as sole managing conservator would not be in the best interests of the child because it would significantly impair Adam’s physical health or emotional development. The court then appointed Rose and Sotelo as joint managing conservators. Lorie was appointed as possessory conservator. Rose was given the exclusive right to determine the primary residence of the child. This appeal proceeds without benefit of findings of fact and conclusions of law.
In his sole point of error on appeal, Sotelo challenges the sufficiency of the evidence to defeat the parental presumption. As we will explain, the presumption *787 does not apply in a modification proceeding. We reframe the issue for review as one challenging the sufficiency of the evidence to meet the statutory requirements for modification.
STANDARD OF REVIEW
Most orders arising from a suit affecting the parent-child relationship will not be disturbed on appeal unless the complaining party can demonstrate a clear abuse of discretion.
Worford v. Stamper,
While an appellant may challenge the sufficiency of the evidence to support findings of fact, in most circumstances that is not enough.
Hodson,
A “no evidence” point is a question of law which challenges the legal sufficiency of the evidence to support a particular fact-finding.
Lide,
The term “abuse of discretion” is not susceptible to rigid definition.
Hod-son,
THE PARENTAL PRESUMPTION
There is a strong presumption that the best interest of a child is served if a natural parent is appointed as a managing conservator.
Lewelling v. Lewelling,
This presumption also applies when a non-parent and parent are appointed joint managing conservators of a child but the non-parent is given primary custody.
De La Pena,
Sotelo relies heavily upon
Lewelling
and
De La Pena
in his argument. In both of these cases, the custody dispute between the parent and non-parent arose in the context of an original suit affecting the parent-child relationship. The instant case involves a modification of a prior order. Consequently, our analysis must be guided
*789
by
In re V.L.K.,
The court may modify an order that provides for the appointment of a conservator of a child, that provides the terms and conditions of conservatorship, or that provides for the possession of or access to a child if modification would be in the best interest of the child and:
(1) the circumstances of the child, a conservator, or other party affected by the order have materially and substantially changed since the earlier of:
(A) the date of the rendition of the order.
Tex.Fam.Code Ann. § 156.101(l)(Vernon 2004-05).
In his motion to modify, Sotelo affirmatively pled that “[t]he circumstances of the child, a conservator, or other party affected by the order to be modified have materially and substantially changed since the date of rendition of the order to be modified.” He does not challenge that element on appeal. Consequently, we must determine whether Rose established that the modification was in Adam’s best interest.
As we said in
De La Pena,
custody disputes by their very nature are inherently fact-intensive.
De La Pena,
WAS THE MODIFICATION IN ADAM’S BEST INTEREST?
To prevail, Rose had to establish that it was in Adam’s best interest that she be appointed as a managing conservator with the exclusive right to determine the child’s primary residence. We now turn to the evidence elicited at trial.
Eddie Terrazas, a manager at a drug screen compliance lab, testified that Sotelo had taken five drug tests. The tests screened for seven specific drugs: amphetamine, barbiturates, benz, cocaine, opiates, POP, and marijuana. The tests were scheduled by Sotelo and administered on June 9, 2003, March 9,2004, April 20, 2004, May 13, 2004, and May 21, 2004. No drugs were found in Sotelo’s system. Marijuana stays in the system up to four *790 weeks for a chronic user and seven days for an occasional user; cocaine remains for twelve to forty-eight hours.
Francis Hall, the office manager and assistant director at the Joe Pinner West-side YMCA, knew Sotelo, his mother, and Adam because the child had been enrolled at the facility for several months at a time Hall had an opportunity to observe Adam and did not notice anything that would cause her concern. She did not discern any behavioral problems and thought the child seemed happy. Sotelo would drop off Adam and pick him up. Hall had never seen Lorie or Rose.
Luis Rios, a friend of Sotelo, had an opportunity to observe Sotelo with Adam. Rios thought Sotelo was a good father and he did not see anything that would cause him concern. Rios would not worry about leaving his own children with Sotelo. Rios denied that Sotelo used cocaine or that cocaine had been used at any parties they attended together. He had seen Lorie smoke marijuana’around Adam. Lorie, on the other hand, testified that she, Rios, and Sotelo had all used drugs. She and Rios smoked marijuana and all three of them used cocaine.
Social worker Peggy Honaker prepared a home study. She visited the Cartwright home and Sotelo’s home and found Adam to be happy, secure, and well-adjusted in both places. She was aware of allegations concerning drug use but she found no indications of it in either home. The Cart-wrights had been earing for Adam most of his life and this was a positive thing. She also found that Sotelo played an active role in the boy’s life.
Tina Mason is Sotelo’s mother. She testified that Sotelo played a positive role in his son’s life. Adam lived with Sotelo in the spring of 2003 and from December 29, 2003 until February 9, 2004. During that time, Sotelo dropped off and picked up the child from daycare, cooked for him, and bathed him. In the four months preceding trial, Sotelo had fostered a positive relationship with the child. Adam was excited when he came for weekend visits.
Mason had seen nothing to cause her concern and she denied any knowledge of Sotelo using drugs. She thought his one-bedroom home was clean and well kept. She did not believe Adam would be safe in Lorie’s custody. Mason admitted that the child had been living with the Cartwrights for some time but she believed that allowing Adam to live with his father would be a positive and stabilizing experience.
Mason admitted that both times Adam had lived with Sotelo, it had occurred in violation of court orders. She was concerned when the child was in Rose’s care. Rose did not put Adam in a car seat and allowed him to jump on the trampoline unsupervised. Mason would pick the child up from the country club where Rose worked and Mason believed this was an inappropriate environment. Adam was always covered with mosquito bites in the summer causing Mason alarm due to the West Nile virus.
Sotelo described his house as having one bedroom and a fenced backyard. He had worked at Big Tex Trailers on the loading dock since January 2004. During the busy season, Sotelo worked approximately sixty hours a week. He had applied for a construction job where he would make more money.
Adam lived with Sotelo and Lorie until he was a year or a year and a half. When the couple split up, the court awarded primary custody to Lorie. Adam lived with Sotelo on two separate occasions in 2003. In March, Lorie dropped him off with Sotelo and left for Houston. Sotelo admitted that the Cartwrights asked him to bring the child back to their house, but *791 he refused. The court ordered him to return the child. Lorie took Adam back to Sotelo in December. Sotelo testified that he only had an obligation to return Adam to Lorie, and she never asked. He also claimed that Rose had not asked him to bring Adam to her. Once again, it took a court order for Sotelo to surrender the child.
Sotelo believed that Adam should live with him since he was his father. He thought he was capable of taking care of the child. He admitted drug usage in the past but professed he had not done so since he was nineteen or twenty years old. He was twenty-five years old at the time of the trial. On cross-examination, he denied using marijuana since Adam’s birth. Adam was four at the time of trial. Sotelo also admitted to having used cocaine. He agreed to undergo random drug testing.
Sotelo exercised most of his weekend visitation and paid child support, even if he had not always paid the full amount due. He also gave Lorie money for rent. He admitted representing on his 2002 and 2003 federal income tax returns that Adam was living with him when he was not.
Harvey Gomez testified that on New Year’s Eve 2002, he went to the North Side bar. There were a couple of fights that evening. Sotelo got into a fight defending a friend. Gomez saw a lot of drugs that evening and Sotelo offered to sell him cocaine. But he never saw the drugs in Sotelo’s possession and he believed Sotelo was bluffing.
Velma Payan, a teacher at Monahans Head Start, testified that Adam was in her class. He attended class regularly except for missing school in January. Payan described Adam as an easygoing and social child who got along well with teachers and other students. Payan had contact only with Rose and Lorie. Sotelo never contacted her to check on Adam’s progress in school. Lorie would attend class parties and drop off and pick the child up from school. Rose volunteered on a daily basis and would eat lunch with Adam. She also attended class parties and was available for conferences. At the beginning, Adam was a little withdrawn and quiet, but he progressed well with his vocabulary and social skills improved. When eating breakfast, the children would often discuss their families. One child said that he wanted to ride a motorcycle like his dad. Adam responded that he wanted to go to bars and get drunk like his dad. Payan never heard Adam mention his father any other time.
Rose Cartwright testified that Adam lived with Sotelo and Lorie for about six months until Adam and Lorie came to live with her. She and her husband provided clothing, food, and medical insurance for Adam as well as a home. She had enrolled the child in Head Start.
When Sotelo failed to return Adam in the spring of 2003, Rose called him and his mother. She went to Odessa and left notes and letters asking that the child be returned. When Lorie again left Adam with Sotelo in December, Rose attempted to contact the child by calling Sotelo’s cell number, his mother’s number, and leaving notes. She spoke to Sotelo’s mother a few times, and she would make excuses as to why Sotelo could not come to the phone.
Rose testified that she did not use drugs. She was concerned about Adam living with Sotelo. The child had attended a party with his father and came home pretending to snort cocaine off a table. Due to the drug issues, Rose believed that placing the child with his father could significantly affect his emotional or physical development. She believed it was in Adam’s best interest that she be named managing conservator.
*792 Charles Cartwright testified that he had taken on the responsibility of supporting and raising Adam. He had not used drugs within the last four years but had within the last ten years. Now he was “clean” and would not allow drugs in his house. He agreed that a person could use drugs at one point and then turn it around. He believed it would be in Adam’s best interests for Rose to be named managing conservator since Adam’s involvement with her had been a positive experience.
Lorie testified that she had moved back with her parents in Monahans when Adam was a year old and the child had lived there ever since. The Cartwrights provided financial support for the child and the whole family cared for him. Lori believed that Adam was safe with her parents and that Rose had the child’s best interests at heart. Although she had originally professed that Adam was better off with So-telo, by the time of trial she thought it was in Adam’s best interest for Rose to be his managing conservator.
The evidence is both legally and factually sufficient to established that modification was in Adam’s best interest. Sotelo offered to sell Harvey Gomez cocaine in 2002. Sotelo had no involvement in Adam’s daily school routine. Adam told his classmates that he wanted to be just like his father and go to bars and get drunk. He pretended to sniff cocaine after attending a party with his father and Sotelo had used cocaine around the child. He had deliberately violated court orders on two separate occasions, necessitating court intervention. As a result of the December 2003 incident, Adam missed a month of school in January 2004.
We acknowledge that the evidence shows that Sotelo frequently exercised his visitation and was perceived to be a good father by friends and family. And while the social worker suggested that Adam live with his father, there was evidence that Adam’s visits with Sotelo resulted in disruptive or uncharacteristic behavior.
See De La Pena,
