I had a similar problem in Florida. The 2 PO didn't register the trailer and the state wouldn't accept a bill of sale. They gave me a "perjury statement" to be filled out by the last known owner.....basically saying that he was the rightful owner. I mailed it to him, he filled it out and sent it back and the state took it with no problem, OH, I also had to get it weighed. cost was a whole $1.50 for that.
Tim... I got very lucky with the trailer I brought back from Michigan. Knowing the issues I had with the Ohio trailer... before I made the drive up to get the boat... I had the last owner send me the vin, and copies of the registration. Then... I did NOTHING in Michigan. (That was part of the prob in Ohio... I transfered it to me)
Now... the nice thing here was... Michigan has perm trailer plates... and they aren't transferable. So... I kept his plate... and it was valid for me to drive on. (to get it home)
Then... I went to that same inspection station with the goofy "No Title" registration... and they did the paper work. The funny thing is... they can't issue a PA plate until there is a title, but since I had a legal Michigan plate... I used it until the PA plate came.
See this is why I asked because there is the original manufacture sticker on it. However it only states a serial number and gives the trailer type/weight/length etc.etc. I would do it as a home made trailer but I have to get it inspected by a DPS officer (trooper), and he is going to know it's not home made, then i may have to go through the process of having a new VIN assigned to the trailer. I'm trying to take the ski out this weekend. and the previous owner didn't give the liscense plates to me. He took them off when I bought the trailer.
OK.... this is skating a "Gray" area.
I'm not sure how they do it in TX.... but in PA... a plate is owned by the "Owner". So... if I sell a car, trailer, motorcycle, etc... I keep my plate, and the new owner has one issued, or they put on a plate they already own. (The paperwork still needs done for the transfer of ownership)
Because of that.... when my Ohio trailer was in limbo.... I took a plate off a trailer I legally owned... and put it on the boat trailer to tow it. On one hand... that's completely illegal. BUT... since the plate was of the same weight class... and I owned both trailers.... AND, there is almost NEVER a VIN on the trailer.... even if I got pulled over... there was no proof of wrong dooing.
So... since the last owner kept the plate, I will assume that you keep your issued plates. So... if you (or a family member) has a trailer of similar size/weight... you could probably do that to use the ski this weekend. BUT... since I'm not a lawyer, and I don't know TX laws.... do so at your own risk.