SSI; profits from selling home to buy a new home

With a child receiving SSI, if we sell the house we live in and then any excess money (other than money going towards what we already owe on my current home loan) but all profit/excess money from the sell is being used directly towards the new down/loan for buying a new home/new residence, will anything happen to my childs benefits/payments? what do we need to do to get this transaction/sell of one property for another okayed with SSI? and what is the time limit we will have to sell our house once the sell of our home and buying of a new home transfers the sell profit funds towards the new home loan, then we move into the new home to be then counted as an excluded resource?....

I found the below excerpt on the SSI website that shows this situation in the underlined sections, but im not sure I fully understand the time limits for sure adn what to do, I want to make sure I do everything right.

Section from SSI site about excluded home when selling;

Social security Exclusion of the Home;

(a) Defined. A home is any property in which an individual (and spouse, if any) has an ownership interest and which serves as the individual's principal place of residence. This property includes the shelter in which an individual resides, the land on which the shelter is located and related outbuildings.

(b) Home not counted. We do not count a home regardless of its value. However, see §§ 416.1220 through 416.1224 when there is an income-producing property located on the home property that does not qualify under the home exclusion.

(c) If an individual changes principal place of residence. If an individual (and spouse, if any) moves out of his or her home without the intent to return, the home becomes a countable resource because it is no longer the individual's principal place of residence. If an individual leaves his or her home to live in an institution, we still consider the home to be the individual's principal place of residence, irrespective of the individual's intent to return, as long as a spouse or dependent relative of the eligible individual continues to live there. The individual's equity in the former home becomes a countable resource effective with the first day of the month following the month it is no longer his or her principal place of residence.

(e) Proceeds from the sale of an excluded home. (1) The proceeds from the sale of a home which is excluded from the individual's resources will also be excluded from resources to the extent they are intended to be used and are, in fact, used to purchase another home, which is similarly excluded, within 3 months of the date of receipt of the proceeds.

(2) The value of a promissory note or similar installment sales contract constitutes a “proceed” which can be excluded from resources if—

(i) The note results from the sale of an individual's home as described in § 416.1212(a);

(ii) Within 3 months of receipt (execution) of the note, the individual purchases a replacement home as described in § 416.1212(a) (see paragraph (f) of this section for an exception); and

(iii) All note-generated proceeds are reinvested in the replacement home within 3 months of receipt (see paragraph (g) of this section for an exception).

(3) In addition to excluding the value of the note itself, other proceeds from the sale of the former home are excluded resources if they are used within 3 months of receipt to make payment on the replacement home. Such proceeds, which consist of the downpayment and that portion of any installment amount constituting payment against the principal, represent a conversion of a resource.

(f) Failure to purchase another excluded home timely. If the individual does not purchase a replacement home within the 3-month period specified in paragraph (e)(2)(ii) of this section, the value of a promissory note or similar installment sales contract received from the sale of an excluded home is a countable resource effective with the first moment of the month following the month the note is executed. If the individual purchases a replacement home after the expiration of the 3-month period, the note becomes an excluded resource the month following the month of purchase of the replacement home provided that all other proceeds are fully and timely reinvested as explained in paragraph (g) of this section.

(g) Failure to reinvest proceeds timely. (1) If the proceeds (e.g., installment amounts constituting payment against the principal) from the sale of an excluded home under a promissory note or similar installment sales contract are not reinvested fully and timely (within 3 months of receipt) in a replacement home, as of the first moment of the month following receipt of the payment, the individual's countable resources will include:

(i) The value of the note; and

(ii) That portion of the proceeds, retained by the individual, which was not timely reinvested

(2) The note remains a countable resource until the first moment of the month following the receipt of proceeds that are fully and timely reinvested in the replacement home. Failure to reinvest proceeds for a period of time does not permanently preclude exclusion of the promissory note or installment sales contract. However, previously received proceeds that were not timely reinvested remain countable resources to the extent they are retained.