Unit needs line set ran through apartment

[Chris G.]

Early March I sent a tech out to see why the a/c wasn't working and draining fast they said it was the evaporator coil that needed to be replaced. Due to the A/C unit having a warranty for being replaced in 2019 I had to go with a different vendor we normally don't use (the one that installed and gave warranty) the part was suppose to arrive April 4 since it was backed up from the factory. I called yesterday to see if the part was delivered and they never ordered it..... they ended up sending out a tech for free without even letting me know and then mentioned the tech said it's not the evaporator coil its that the line set needs to be replaced so now its one so called problem to an even larger problem. As soon as he put 6lb of refrigerant in it was gone minutes later. They explained that the line set runs to 3 other condensers at this condo complex and that it would be a big job and I need permission from the hoa. Now I wouldn't say I'm a tech but to anyone who may know does this sound correct? I've read that sometimes the hoa has to pay for this? This has been an ongoing issue trying to get the a/c back on for the tenants I would appreciate any feedback. 

[Austin F.]

If the same company had two different opinions whats wrong I'd be really curious to hear what companies 2 and 3 think.