A house is a building that functions as a home.
If your adult daughters find it difficult to wear full Hijab at home in front of the Non Mahram man, you must protect them from falling in sin of being seem by him with out full Hijab. You must arrange for him another place to live, away from your adult daughters.
It is allowed to do house cleaning at night. If some is sleeping, we should be careful not to disturb his sleep.
The status of the Prophet Muhammad (SAWA) and his Holy Progeny is higher than the status of Ka'bah and any one and any thing created by Allah (SAWA). The Prophet Muhammad (SAWA) is the best and the highest among the creatures of Allah (SWT). His holy Progeny are from him and their status is from his highest status.
We have narrations in Mustadrak al-Wasaa'il (2:484) from the Prophet (SAWA) that the spirits of the believers come back on Fridays near their homes and every one from them will call him family members who are alive: O my family, O my children, O my father, O my mother, O my relatives; have a sympathy on me, may Allah have sympathy on you....
أرواح المؤمنين ليلة الجمعة
2525 / 24 وقال (صلى الله عليه وآله): " ان أرواح المؤمنين تأتي كل جمعة إلى السماء الدنيا بحذاء دورهم وبيوتهم ينادي كل واحد منهم بصوت حزين باكين: يا أهلي، ويا ولدي، ويا أبي، ويا أمي وأقربائي اعطفوا علينا يرحمكم الله بالذي كان في أيدينا والويل والحساب علينا والمنفعة لغيرنا وينادي كل واحد منهم إلى أقربائه: اعطفوا علينا بدرهم أو برغيف أو بكسوة يكسوكم الله من لباس الجنة "، ثم بكى النبي (صلى الله عليه وآله) وبكينا معه، فلم يستطع النبي (صلى الله عليه وآله) أن يتكلم من كثرة بكائه، ثم قال: " أولئك إخوانكم في الدين، فصاروا ترابا رميما، بعد السرور والنعيم فينادون بالويل والثبور على أنفسهم يقولون: يا ويلنا لو أنفقنا ما كان في أيدينا في طاعة الله ورضائه ما كنا نحتاج إليكم فيرجعون بحسرة وندامة، وينادون: أسرعوا صدقة الأموات ".
مستدرك الوسائل-ج٢ ص ٤٨٤
If she is spraying (urinating) on you/your clothing, and you have cat urine on yourself or your clothes, you should wash out the urine before praying. If not, it's not a big deal, but it might be annoying.
Yes it is allowed to have a cat and touch her. Praying Namaz needs your body and cloth clean from the hair of can or any animal which is not permissible to eat. Ayatullah Sistani allows few hairs.
If you need to buy a house for livening in it and not for investment, and you have legally and islamically entered in the purchase agreement but the completion (full payment) was after your date of Khums, then the amount of the completion of the purchase is not under your free ownership because you have a binging agreement to pay. This makes that amount out of Khums calculations of that year because it was already committed for buying a house to live in.
Yes. It is allowed to pet a baby panda in your house like cat or bird, but you need to be careful about rules of Taharah and Nijasah.
I have not seen any one who claims that Imam Ali's house water is bitter. Nevertheless, even if some claims that, it does not harm the sacred status of the place. The location of the house is near the river of Furat. Sometimes the water level in the river is high and sometimes it is low or even very low. That can be a possible reason of change in the taste of the water. It is worth mentioning that the house was never owned by Imam Ali (AS) but by his nephew (Jo'dah ibn Hubairah جعدة بن هبيرة)and Imam Ali (AS) was just a temporary tenant in that house.
There would not be any shar'i problem with changing places, as long as there is no intention in desecrating the sanctity of this holy time of mourning.
It would be advisable, if it is possible, to postpone until after Ashura, and to continue to allocate time for your 'azaa` and dedication in mourning for Imam Husain (a.s.).
With prayers for your success.
Yes we can perform it at home. It is not compulsory to perform it under the sky.
The attack on the house of Fatima Zahra (AS) has been admitted by leading Sunni leaders including Abu Bakr himself who openly said when he was about to die that I wish that I did not attack the house of Fatima even if it was a center of war against me. This is narrated by eminent Sunni scholars like:
1. Al-Tabarani in al-Mo'jam al-Kabeer ,
2. al-Dhahabi in Meesan al-E'tidaal,
3. Ibn Qutaiba and quoted by Ibn A'bd Rabbih in his book al-E'qd al-Fareed.
4. al-Mas'oodi in amorous al-Dhahab.
5. Ibn Asaakir in Tareekh Dimishq.
6. al-Haithami in Majma' al-Zawaa'id.
7. al-Soyouti in Musnad Fatimah
8. al-Muttaqi al-Hindi in Kanz al-Ummaal.
Beside this, we have hundreds of Sunni books who narrated about the attack and fire to burn the house or door of Fatimah e.g.
1. Tareekh al-Tabari , V.2, P. 443.
2. Mussannaf Abi Shaibah, V. 8, P. 572.
3. al-E'qd al-Fareed , V.2, P. 73.
4. Ibn Abd al-Barr in al-Estee'aab, V. 1, P. 298.
5. al-Waafi bil Wafayaat by al-Safari, V.2, P.227.
6. Kanzul Ummah , V.5, P.651.
7. Abul-Fidaa' in al-Mukhtasar Fi aakhbaar al- Bashar, V.1, P.107.
8. Ibn Taymiyyah (the staunch enemy of Ahlul Bayt) in his book Minhajul Sunnah, V.8, P. 291.
9.Ibn Hajar al-A'sqalani in Lisaan al-Mizan, V.1, P.111.
10. al-Dhahbi in Milan al-E'tidaal, V.1, P. 139 and in Siyar A'laam al-Nubalaa', V. 15, P. 578.
11. Al-Tabarani in al-Mo'jam al-Kabeer , V.1, P. 17.
12, Al-Haithami on Mo'jam al-Zawaa'id, V.2, P. 353.
and many other Sunni sources.