Under the Civil Code of the Philippines, trespass occurs when someone unlawfully enters or occupies another's property. In your case, if someone changed the boundaries of your land without permission, this may constitute trespass.
In summary, the father may not legally sell the entire property without the children's consent if the property is part of the estate of the deceased mother. Any sale done without the agreement of all heirs can be contested in court and possibly declared void.
You're not required to hire a real estate agent to sell your home in California. But selling without one involves a lot of work and a big time commitment. While selling by owner spares you from paying the commission of a seller's agent, you'll still be responsible for the buyer's agent's commission.
If a person other than the owner attempts to sell the property, the transaction is considered illegal. This type of sale falls under fraudulent transactions and can be nullified under Philippine law. Even if the buyer was unaware that the seller was not the legitimate owner, the sale would still be void.
The sale, mortgage, or disposal of conjugal properties in the Philippines cannot be done unilaterally. Both spouses must give their consent before any such transactions can be validly executed.
24-hour notice required The landlord must give you 24-hour advance written notice before entering. The notice should state a specific time of entry, which must be during normal business hours.
For a simplified look at Los Angeles rent control, look here. Los Angeles, Santa Monica, Beverly Hills, and West Hollywood have rent control, but Glendale, Burbank, Torrance, Pasadena, Downey, and other cities nearby have nothing like it.
The Ellis Act (California Government Code 7060) allows landlords to withdraw residential rental property subject to rent control from the rental market. Under Ellis, such exit from the rental market may lead to eviction of tenants. The City of Los Angeles has tenant Protections in place for Ellised properties.
As per California Civil Code Section 1954, landlords can only enter a tenant's unit if they provide advance notice. However, they can enter in emergencies, if the property is abandoned, or for scheduled repairs and improvements.
The Ellis Act (California Government Code 7060) allows landlords to withdraw residential rental property subject to rent control from the rental market. Under Ellis, such exit from the rental market may lead to eviction of tenants. The City of Los Angeles has tenant Protections in place for Ellised properties.