BDB can confirm the shareholding of companies and who has the authority to sign on behalf of the company. The Chanote shows the owner of the property and that must correspond with the company details if the house is owned by an individual confirmation of ownership is even easier. Just be aware that liens against a property are also noted on the Chanote. The best is to employ a lawyer if you can't read Thai.
If you meet all the requirements and you have a few hours available each year do it yourself. If you use an agent you will save time at a hefty price and could be scammed in the process.
A road trip for you. Drive north on highway 21 to Phetchabun and visit Kao Koh and Phu Tap Buk. From there travel on highway 12 west to Phitsanulok and Sukhothai (many things to see and do). You continue straight west to Tak and Mae Sot. Turn south to Umg Pang and visit the highest waterfall in SEA. Turn north back to Mae Sot and take highway 105 and later highway 108 to Mae Hong Son. Visit the long neck village, Ban Rak Tai and Pang Oung (pine forest with a lake with swans). Ban Rak Tai has a great history, the Chinese lost army ....... Visit Ban Jabu on your way to Pai on the 1095. Unfortunately you are here the wrong time of the year for Ban Jabu's hill tribe new year celebration. Enjoy civilisation in Chiang Mai for a while. Use any of the routes available and drive to Nan. From Nan use highway 1256 and visit Bo Kleua rock salt well. Make your way down to Dan Sai and Loei province. Visit Chaeng Khan next to the Mekong river. Following the lazy river to Nong Kai and Udon Thani. Continue along to Nakhon Phanom and Mukdahan. Cut south to Trat and jump on a ferry to Koh Wai. End back in Bangkok (with or without visiting Pattaya). Must haves for this trip a good 4wd pickup or SUV, camping gear, camera, correct attitude and no set plans. Camp Mondays to Thursdays and stay in resorts Friday to Sundays. I only highlighted something's but there are some of the most beautiful places and people hidden on this route. I can promise you one thing few have ever done this. Look at the National parks on this route most have cheap camping sites and views to die for.
Yes, USD 10k per person for TP approvals for/after 1 May. As they arrive on 1 May they may need to meet the present requirements. Best to talk to their local embassy.
I think she is applying for an Aus visa. On the application they ask if a visa application of you has been refused in the past and the reason for the refusal.
irrelevant if you come in with a new passport. They can see all your entry and exit info on their system. It is an old wife's tale that changing your passport will clean your slate.