(after stating the facts). (1) Squire Holman owned the lands in controversy as his homestead at the time of his death. About two years after his death his widow, Mrs. M. E. Holman, married a man named Jones. She still continued to reside upon the land with some of her children. At the time the lands were sold for taxes on June 11,1906, for the taxes of 1905, Mrs. M. E. Jones resided on the land with her son, Gus Holman. She had a life estate in the lands by virtue of her home*610stead interest. She had the exclusive right to the possession of the lands and it was her duty to pay the taxes thereon.
In Rodman v. Sanders, 44 Ark. 504, it was held that one who is in possession and receiving the rents and profits of land can not acquire a title to it by a purchase for taxes, and that such acts only operate as a payment of the taxes.
(2-3) In Cocks v. Simmons, 55 Ark. 104, it was held that a tenant in common of land can acquire no title to the interest of his cotenants by purchase at a sale of the whole for delinquent taxes and that his purchase amounts to no more than the payment of the taxes and gives him no right except to demand contribution from his cotenants. Many cases to the same effect are cited in a case note in 8 A. & E. Ann. Cas. at page 988. Various reasons have been assigned for the rule and the one most frequently given is based upon a community of interest in a common title creating such a relation of trust and confidence between the parties that it would be inequitable to permit one of them to do anything to the prejudice of the other in reference to the property so situated. Judge Cooley says that a purchase made by one whose duty it was to pay the taxes shall operate as payment only, and that he shall acquire no rights as against a third party by a neglect of the duty which he owed to such party. Cooley on Taxation, 3 ed., vol. 2, p. 965. This rule applies with especial force to Mrs. M. E. Jones, because she had a life estate in the lands, was entitled to the exclusive possession of them, and it was her duty to pay the taxes. If she had purchased, or procured any one to purchase for her, the lands at a sale thereof on account of the nonpayment of taxes, her purchase would be void and operate as a payment of the taxes. Swan v. Rainey, 59 Ark. 364; Rowland v. Wadly, 71 Ark. 273. The rule is founded on public policy and is designed not only to protect the interest of the parties represented, *611but as a guard against temptation on the part of the representatives. For the same reason it is said that a cotenant can not add to or strengthen his title by purchasing the title to the entire property from a stranger who has purchased the premises at a tax sale, as the law will not allow that to be done indirectly which can not legally be accomplished directly. See case notes to 8 A. & E. Ann. Cas. at 989 and 116 Am. St. Rep. 367, and 75 Am. & St. Rep. at 239; Phillips v. Wilmarth, 98 Ia. 32, 66 N. W. 1053, and Duvois v. Campau, 24 Mich. 360.
Inman purchased the land at the tax sale and received the clerk’s tax deed therefor in April, 1908. He conveyed a part of the land back to Mrs. Jones on April 10,1910, and a part of it to Gus Holman on April 6,1910. During all this time Mrs. Jones and Gus Holman had been in possession of the land. The reconveyance to them operated as a payment of the taxes. On April 13, 1912, Mrs. Jones and Gus Holman reconveyed the lands to Inman and he went into possession of them. This suit was not brought until November 9, 1914, hence it is insisted that Inman acquired a title by adverse possession under the tax deed which was executed to him on June 19, 1908, although it is conceded that the sale for taxes was void. It is contended that this tax deed notwithstanding the tax sale was void and the conveyance from Inman to Mrs. Jones and Gus Holman in 1910, operated as a payment of taxes, remained as color of title and entitled him to the benefit of section 5061 of Kirby’s Digest in regard to the time in which suits may be brought against the purchaser at a tax sale. They rely upon the cases of Brandon v. Parker, 124 Ark. 379, and Moore v. Morris, 118 Ark. 516.
(4) In the case of Moore v. Morris, the title to the land was wrested from the holders of the record title by adverse possession for seven years. The court held that notwithstanding this fact, the record title continued in existence and remained as color of title so that the holder *612of the record title could reacquire title to the lands by payment of taxes for seven years under section 5057 of Kirby’s Digest, the lands being wild and unoccupied < lands'. This rule was extended in Brandon v. Parker. There a person held lands under a donation deed and , another person entered in possession of them within two years and acquired title by adverse possession. It was held that the donation deed of the first owner, although the lands were forfeited to the State under a void tax sale, remained as color of title so that the holder of it could acquire title by adverse possession for two years under section 5061 of Kirby’s Digest. The effect of the holding in those two cases was that although the first owner lost his title by the fact that another had acquired title by adverse possession, his deed or paper title not having been canceled by any order or judgment of the court, remained as color of title. As we have already seen, when Inman conveyed the lands to Mrs. Jones and to Gus Holman, in April, 1910, he had not acquired title to the lands under section 5061 of Kirby’s Digest. Hence his reconveyance of the lands to them operated as a redemption of the lands and as the payment of the taxes by Mrs. Jones and Gus Holman. The deeds to them as fully extinguished the tax title of Inman as could have been done by any order or judgment of a court, and it could no longer remain as color of title. The deeds from Inman back to Mrs. Jones and Gus Holman having opérated in law as a payment of the taxes, Inman had no further rights in the premises under the tax sale and could not thereafter be considered as a tax purchaser at all. To hold otherwise would prevent the repurchase by Mrs. Jones and Gus Holman from operating in law as a payment of the taxes.
(5) It is also contended that the appellees are barred of relief in this case by laches. There is a principle of law that where a eotenant buys in an outstanding title, his cotenant must elect within a reasonable time to *613contribute his due proportion of the money expended in purchasing the outstanding title. Brittin v. Handy, 20 Ark. 381, and Clements v. Cates, 49 Ark. 242. This rule, however, has no application to a case like this; for the possession of one cotenant is the possession of all and laches can not bar the right of entry to a cotenant until the latter’s disseisin has been effected by some notorious act of ouster brought home to his knowledge. Parker v. Brast (W. Va.), 32 S. E. 269. This rule applies with especial force for the reason that Mrs Jones had a life estate in the lands and was entitled to the exclusive possession of them, and it was her duty to pay the taxes. She and her son, Gus Holman, were in possession of the land up to the time they sold it to Inman in April, 1912. This action was brought on November 9, 1914, and was instituted within a reasonable time after appellees ascertained that Inman was claiming the land under his purchase of the land from Mrs. Jones and Gus Holman. Some of the parties interested lived in Kentucky and there were minors, and when all the circumstances are considered we are of the opinion that they were not barred of relief by laches.
(6) There is still another reason for upholding the decision of the chancellor. In a case note to 8 A. & E. Ann. Cas. at page 989, it is said that where a cotenant entered into negotiations with a third person by which such third person agrees to bid in the property at the tax sale and after the period of redemption expires to transfer it to the cotenant, or where, after a third person has bid in the property at a tax sale, a cotenant, by collusion with, him, secretly redeemed the property and after the period of redemption has expired takes a deed from the purchaser ; the transaction is fraudulent, and the purchasing tenant acquires no title as against his cotenants. Several cases are cited in support of the rule. In the cases of Swan v. Rainey, 59 Ark. 364, and Rowland v. Wadly, 71 Ark. 273, this court has distinctly recognized the rule *614that where the evidence establishes a collusive attempt on the part of a life tenant and a third person to acquire the whole title to the land, such transaction will be deemed fraudulent and void and will be set aside in equity.
We think the testimony in the present case shows collusion between Mrs. Jones and her son on the one hand and Inman on the other to acquire the whole title to the land in fraud of the rights of their cotenants, at least after Mrs. Jones and Holman found out that Inman had become a purchaser at the tax sale. It is true that all of these parties deny this to be true, and state that the transaction had between them was in perfect good faith, but their testimony is contradicted by the testimony of other witnesses and also by certain contradictions and inconsistencies in their own testimony, which we will briefly attempt to point out.
It will be remembered that Mrs. Jones had had possession of the land since her husband died in 1888 and resided on it with her son, G-us Holman, at the time of the sale for nonpayment of taxes in June, 1906. Inman received his tax deed in April, 1908. Mrs. Jones and Grus Holman claimed that they began to pay him rent as soon as they found out he had received his tax deed. It does not appear that they made any effort to find out whether the tax deed was valid or not. It is now conceded that it was void. They say that they each paid Inman $200 for a deed to eighty acres of the land. Grus Holman admits that he had no money with which to pay the taxes on the land and no money with which to redeem it. It is not shown that Mrs. Jones had any money whatever. She lived on the place with her son, G-us Holman, and had no other occupation than that of housekeeper for him. Their answers as to where they got the $400 with which they bought the property from Inman are evasive, and it is fairly inferable that they did not have any such amount of money. In addition to this, a witness *615testified that Gus Holman told him that they had let the land sell for taxes and were buying it in to strengthen their title. The amount of cleared land on the place was barely sufficient to afford a living for Mrs. Jones and her son, and it is not shown that they ever made anything above a living.
Inman testified that when he bought the land back he agreed to pay Mrs. Jones $450 and Gus Holman $800. He first stated that he paid them this amount in cash, but subsequently said that they owed him some accounts and that these accounts were taken as part payment of the land. They had been trading with Inman for several years, he said, and owed him on that account. This tends to show that Gus Holman and his mother did not have any money with which to purchase the land in 1910.
They testified that Inman paid them cash when they reconveyed the land to him in 1912. Inman first stated that he did not know that any one else had an interest in the land except Mrs. Jones and Gus Holman, but upon cross-examination he admitted that he talked with them before he bought the land and that they told, him about the state of the title. He said they told him that Squire Holman had sold a tract of land owned by him in Kentucky, and had given the children there a part of the purchase price and had taken a part of it himself and had come to Arkansas, and bought the land in question with the understanding that his Kentucky children would claim no interest in any land he might purchase in Arkansas.
On the other hand, it is shown by appellees that the land sold by Squire Holman in Kentucky was owned by his first wife, and that his children by his first wife only took a part of the proceeds of the sale and let their father keep the other for the purpose of buying land when he came to Arkansas. Be that as it may, it is admitted by *616 Taman that he knew the land belonged to Squire Holman at the time of his death.
Another witness testified that he talked with Inman in 1908, and that Inman admitted to him then that he. knew that other parties than Mrs. Jones and Gus Holman had an interest in the land.
(7) Still another witness testified that Inman wanted him to go m with him and buy the land from Mrs. Jones and Gus Holman, and said that Inman then knew that other parties had an interest in the land. It is true Turnan denies these conversations, but when all the facts and circumstances are considered together, we think the, evidence establishes a collusive attempt on the part of Inman and Mrs. Jones and Gus Holman to acquire the whole title to the land, and that this constituted a fraud which would warrant the chancellor in setting aside the sale to Inman. Besides that, as we have already seen, Inman knew that other persons were interested in the land when he purchased it from Mrs. Jones and Gus Holman, and that he could only acquire by purchase from them whatever interest they might have in the land. By lis purchase he became a tenant in common with the other parties interested in the land and was charged with the same duties and obligations towards his cotenants as any other tenant in common would be. He could not claim adversely to their interest until he had notified them of that fact.
Counsel for appellant filed a motion to modify the decree on the ground that appellees by certain deeds had conveyed a one-half interest in their respective shares to Baker and Sloan, attorneys, and that they had concealed this fact until after the decree was entered of record. It appears from the testimony of Baker and Sloan that the appellees employed them to recover their interest in the land in controversy and agreed to pay them one-half of the lands so recovered. A written contract to this effect was entered into between the parties which *617provided that Baker and Sloan were to have one-half of whatever percentage of the land they recovered for appellees in the action. Subsequently the parties realized that on account of the number of appellees and the fact that they lived in various places, it would be difficult to procure deeds from them in the event of a sucessful termination of the suit. Hence, they executed deeds to Baker and Sloan and delivered them to them with the express understanding that the deeds should not take effect unless there was a recovery of the lands. The court held that the deeds executed to Baker and Sloan were not intended to take effect until the final determination of the action, and .that appellees had a right to bring proceedings to recover their interest in the premises without making Baker and Sloan parties. We think the decision i f the chancellor was correct.
(8) It is insisted that such holding violates the well known rule of evidence that parol testimony is inadmissible to vary the terms of a written instrument and that the delivery of the deeds to Baker and Sloan was an attempt to deliver the deeds in escrow to the grantees-which can not be done, for a delivery to a stranger is essential to an escrow. Conditions precedent are such as must happen before the estate depending upon them can arise. In the present case the deeds were delivered to Baker and Sloan upon the express condition that the deeds should not become effective until the successful determination of the lawsuit. Thus they were not to become operative until another part of the contract, a condition precedent, was fulfilled. This court has held that parol evidence tending to show that a written instrument was not delivered as a present contract but was left in the hands of the obligee on condition that it should not become a binding contract except in a certain contingency was competent. Graham v. Remmel, 76 Ark. 140; Worthen v. Stewart, 116 Ark. 294, and Kimbro v. Wells, 112 Ark. 126. For the same reason the delivery of the deed *618subject to the condition precedent above referred to was not an attempt to deliver the deed in escrow to the grantees. Hence we think the decision of the chancellor on this branch of the case was also correct.
Moreover, Baker and Sloan were made parties to the proceedings after the original decree was entered of record and their rights were adjudicated. Therefore, no prejudice could have resulted to appellants because they were not made parties in the first instance.
We have carefully considered the record in regard to the rents, and the improvements, both on appeal and the cross-appeal, and without protracting this opinion to set out the evidence and finding of the court on these points in detail, we deem it sufficient to say that we are of the opinion that the decree of the chancellor was correct on this branch of the case.
It follows that the decree in its entirety will be affirmed.